9926870864896 has 44 divisors (see below), whose sum is σ = 21011344469748. Its totient is φ = 4671468634112.

The previous prime is 9926870864887. The next prime is 9926870864917. The reversal of 9926870864896 is 6984680786299.

It can be written as a sum of positive squares in 2 ways, for example, as 9106875417600 + 819995447296 = 3017760^2 + 905536^2 .

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, 285106411 + ... + 285141226.

Almost surely, 2^{9926870864896} is an apocalyptic number.

It is an amenable number.

9926870864896 is an abundant number, since it is smaller than the sum of its proper divisors (11084473604852).

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

9926870864896 is a wasteful number, since it uses less digits than its factorization.

9926870864896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570247674 (or 570247656 counting only the distinct ones).

The product of its (nonzero) digits is 4514807808, while the sum is 82.

The spelling of 9926870864896 in words is "nine trillion, nine hundred twenty-six billion, eight hundred seventy million, eight hundred sixty-four thousand, eight hundred ninety-six".