72707426232 has 32 divisors (see below), whose sum is σ = 207735504000. Its totient is φ = 20773550304.

The previous prime is 72707426227. The next prime is 72707426321. The reversal of 72707426232 is 23262470727.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216390982 + ... + 216391317.

It is an arithmetic number, because the mean of its divisors is an integer number (6491734500).

Almost surely, 2^72707426232 is an apocalyptic number.

It is an amenable number.

72707426232 is an abundant number, since it is smaller than the sum of its proper divisors (135028077768).

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

72707426232 is a wasteful number, since it uses less digits than its factorization.

72707426232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432782315 (or 432782311 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 42.

Adding to 72707426232 its reverse (23262470727), we get a palindrome (95969896959).

The spelling of 72707426232 in words is "seventy-two billion, seven hundred seven million, four hundred twenty-six thousand, two hundred thirty-two".