23172279379200 has 3888 divisors, whose sum is σ = 109423135471104. Its totient is φ = 4815794995200.

The previous prime is 23172279379189. The next prime is 23172279379237. The reversal of 23172279379200 is 297397227132.

23172279379200 is a `hidden beast` number, since 2 + 31 + 72 + 279 + 3 + 79 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (3888).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 40159929312 + ... + 40159929888.

Almost surely, 2^{23172279379200} is an apocalyptic number.

23172279379200 is a gapful number since it is divisible by the number (20) 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 23172279379200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54711567735552).

23172279379200 is an abundant number, since it is smaller than the sum of its proper divisors (86250856091904).

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

23172279379200 is a wasteful number, since it uses less digits than its factorization.

23172279379200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680 (or 642 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 54.

The spelling of 23172279379200 in words is "twenty-three trillion, one hundred seventy-two billion, two hundred seventy-nine million, three hundred seventy-nine thousand, two hundred".