423665119870272 has 672 divisors, whose sum is σ = 1491873506000640. Its totient is φ = 117482730946560.

The previous prime is 423665119870229. The next prime is 423665119870273. The reversal of 423665119870272 is 272078911566324.

It is a happy number.

423665119870272 is a `hidden beast` number, since 4 + 2 + 3 + 6 + 6 + 511 + 98 + 7 + 0 + 27 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423665119870273) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 669693373 + ... + 670325699.

It is an arithmetic number, because the mean of its divisors is an integer number (2220049860120).

It is a 1-persistent number, because it is pandigital, but 2⋅423665119870272 = 847330239740544 is not.

Almost surely, 2^{423665119870272} is an apocalyptic number.

423665119870272 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423665119870272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (745936753000320).

423665119870272 is an abundant number, since it is smaller than the sum of its proper divisors (1068208386130368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423665119870272 is a wasteful number, since it uses less digits than its factorization.

423665119870272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632596 (or 632573 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 63.

The spelling of 423665119870272 in words is "four hundred twenty-three trillion, six hundred sixty-five billion, one hundred nineteen million, eight hundred seventy thousand, two hundred seventy-two".