9712864763840 has 112 divisors (see below), whose sum is σ = 26479163403264. Its totient is φ = 3324292531200.

The previous prime is 9712864763831. The next prime is 9712864763879. The reversal of 9712864763840 is 483674682179.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2517896 + ... + 5075975.

Almost surely, 2^{9712864763840} is an apocalyptic number.

It is an amenable number.

9712864763840 is an abundant number, since it is smaller than the sum of its proper divisors (16766298639424).

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

9712864763840 is a wasteful number, since it uses less digits than its factorization.

9712864763840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7594466 (or 7594456 counting only the distinct ones).

The product of its (nonzero) digits is 97542144, while the sum is 65.

The spelling of 9712864763840 in words is "nine trillion, seven hundred twelve billion, eight hundred sixty-four million, seven hundred sixty-three thousand, eight hundred forty".