9957387312 has 60 divisors (see below), whose sum is σ = 28620028320. Its totient is φ = 3229421184.

The previous prime is 9957387287. The next prime is 9957387313. The reversal of 9957387312 is 2137837599.

It is not an unprimeable number, because it can be changed into a prime (9957387313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 929112 + ... + 939767.

It is an arithmetic number, because the mean of its divisors is an integer number (477000472).

Almost surely, 2^9957387312 is an apocalyptic number.

It is an amenable number.

9957387312 is an abundant number, since it is smaller than the sum of its proper divisors (18662641008).

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

9957387312 is a wasteful number, since it uses less digits than its factorization.

9957387312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868930 (or 1868921 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 9957387312 is about 99786.7090949491. The cubic root of 9957387312 is about 2151.3701244797.

The spelling of 9957387312 in words is "nine billion, nine hundred fifty-seven million, three hundred eighty-seven thousand, three hundred twelve".