900721626752 has 32 divisors (see below), whose sum is σ = 1888848811200. Its totient is φ = 426657611520.

The previous prime is 900721626719. The next prime is 900721626817. The reversal of 900721626752 is 257626127009.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×900721626752² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 900721626697 and 900721626706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185178824 + ... + 185183687.

It is an arithmetic number, because the mean of its divisors is an integer number (59026525350).

Almost surely, 2^900721626752 is an apocalyptic number.

It is an amenable number.

900721626752 is an abundant number, since it is smaller than the sum of its proper divisors (988127184448).

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

900721626752 is a wasteful number, since it uses less digits than its factorization.

900721626752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370362544 (or 370362532 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 900721626752 in words is "nine hundred billion, seven hundred twenty-one million, six hundred twenty-six thousand, seven hundred fifty-two".