9864157012 has 24 divisors (see below), whose sum is σ = 17550821120. Its totient is φ = 4849688160.

The previous prime is 9864156961. The next prime is 9864157031. The reversal of 9864157012 is 2107514689.

It is a self number, because there is not a number n which added to its sum of digits gives 9864157012.

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, 1374289 + ... + 1381447.

Almost surely, 2^9864157012 is an apocalyptic number.

It is an amenable number.

9864157012 is a deficient number, since it is larger than the sum of its proper divisors (7686664108).

9864157012 is a wasteful number, since it uses less digits than its factorization.

9864157012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12871 (or 12869 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 9864157012 is about 99318.4625938199. The cubic root of 9864157012 is about 2144.6346848992.

The spelling of 9864157012 in words is "nine billion, eight hundred sixty-four million, one hundred fifty-seven thousand, twelve".