72323430451650 has 72 divisors (see below), whose sum is σ = 222067371225024. Its totient is φ = 16531069816800.

The previous prime is 72323430451633. The next prime is 72323430451669. The reversal of 72323430451650 is 5615403432327.

It is a happy number.

72323430451650 is a `hidden beast` number, since 7 + 2 + 3 + 234 + 304 + 51 + 65 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 72323430451596 and 72323430451605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11479906446 + ... + 11479912745.

It is an arithmetic number, because the mean of its divisors is an integer number (3084269044792).

Almost surely, 2^{72323430451650} is an apocalyptic number.

72323430451650 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72323430451650 is an abundant number, since it is smaller than the sum of its proper divisors (149743940773374).

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

72323430451650 is a wasteful number, since it uses less digits than its factorization.

72323430451650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22959819216 (or 22959819208 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 45.

Adding to 72323430451650 its reverse (5615403432327), we get a palindrome (77938833883977).

The spelling of 72323430451650 in words is "seventy-two trillion, three hundred twenty-three billion, four hundred thirty million, four hundred fifty-one thousand, six hundred fifty".