9921077796 has 96 divisors (see below), whose sum is σ = 26950282240. Its totient is φ = 2781972864.

The previous prime is 9921077779. The next prime is 9921077813. The reversal of 9921077796 is 6977701299.

It is an interprime number because it is at equal distance from previous prime (9921077779) and next prime (9921077813).

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1589610 + ... + 1595838.

Almost surely, 2^9921077796 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9921077796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13475141120).

9921077796 is an abundant number, since it is smaller than the sum of its proper divisors (17029204444).

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

9921077796 is a wasteful number, since it uses less digits than its factorization.

9921077796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6593 (or 6591 counting only the distinct ones).

The product of its (nonzero) digits is 3000564, while the sum is 57.

The square root of 9921077796 is about 99604.6073030761. The cubic root of 9921077796 is about 2148.7519561086.

The spelling of 9921077796 in words is "nine billion, nine hundred twenty-one million, seventy-seven thousand, seven hundred ninety-six".