72732889626 has 16 divisors (see below), whose sum is σ = 150158224128. Its totient is φ = 23462222400.

The previous prime is 72732889549. The next prime is 72732889717. The reversal of 72732889626 is 62698823727.

It is a self number, because there is not a number n which added to its sum of digits gives 72732889626.

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, 195518335 + ... + 195518706.

It is an arithmetic number, because the mean of its divisors is an integer number (9384889008).

Almost surely, 2^72732889626 is an apocalyptic number.

72732889626 is an abundant number, since it is smaller than the sum of its proper divisors (77425334502).

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

72732889626 is a wasteful number, since it uses less digits than its factorization.

72732889626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391037077.

The product of its digits is 24385536, while the sum is 60.

The spelling of 72732889626 in words is "seventy-two billion, seven hundred thirty-two million, eight hundred eighty-nine thousand, six hundred twenty-six".