29925452872 has 48 divisors (see below), whose sum is σ = 67521829500. Its totient is φ = 12382941312.

The previous prime is 29925452867. The next prime is 29925452923. The reversal of 29925452872 is 27825452992.

It can be written as a sum of positive squares in 2 ways, for example, as 28691616996 + 1233835876 = 169386^2 + 35126^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1304847 + ... + 1327582.

Almost surely, 2^29925452872 is an apocalyptic number.

It is an amenable number.

29925452872 is an abundant number, since it is smaller than the sum of its proper divisors (37596376628).

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

29925452872 is a wasteful number, since it uses less digits than its factorization.

29925452872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632478 (or 2632467 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 55.

The spelling of 29925452872 in words is "twenty-nine billion, nine hundred twenty-five million, four hundred fifty-two thousand, eight hundred seventy-two".