9986762913856 has 21 divisors (see below), whose sum is σ = 19817532825231. Its totient is φ = 4993368816192.

The previous prime is 9986762913839. The next prime is 9986762913863. The reversal of 9986762913856 is 6583192676899.

The square root of 9986762913856 is 3160184.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 25083961 + ... + 25478983.

Almost surely, 2^{9986762913856} is an apocalyptic number.

9986762913856 is the 3160184-th square number.

It is an amenable number.

9986762913856 is a deficient number, since it is larger than the sum of its proper divisors (9830769911375).

9986762913856 is an frugal number, since it uses more digits than its factorization.

9986762913856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790058 (or 395025 counting only the distinct ones).

The product of its digits is 2116316160, while the sum is 79.

The spelling of 9986762913856 in words is "nine trillion, nine hundred eighty-six billion, seven hundred sixty-two million, nine hundred thirteen thousand, eight hundred fifty-six".