9915462872 has 16 divisors (see below), whose sum is σ = 21247420560. Its totient is φ = 4249484064.

The previous prime is 9915462859. The next prime is 9915462881. The reversal of 9915462872 is 2782645199.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 88530863 + ... + 88530974.

It is an arithmetic number, because the mean of its divisors is an integer number (1327963785).

Almost surely, 2^9915462872 is an apocalyptic number.

It is an amenable number.

9915462872 is an abundant number, since it is smaller than the sum of its proper divisors (11331957688).

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

9915462872 is a wasteful number, since it uses less digits than its factorization.

9915462872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177061850 (or 177061846 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The square root of 9915462872 is about 99576.4172482622. The cubic root of 9915462872 is about 2148.3465110550.

The spelling of 9915462872 in words is "nine billion, nine hundred fifteen million, four hundred sixty-two thousand, eight hundred seventy-two".