9976770776799 has 48 divisors (see below), whose sum is σ = 15023338145920. Its totient is φ = 6374318146560.

The previous prime is 9976770776783. The next prime is 9976770776803.

9976770776799 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9976770776799 - 2⁴ = 9976770776783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9976770776719) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10624839 + ... + 11525655.

Almost surely, 2^{9976770776799} is an apocalyptic number.

9976770776799 is a deficient number, since it is larger than the sum of its proper divisors (5046567369121).

9976770776799 is a wasteful number, since it uses less digits than its factorization.

9976770776799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901360 (or 901357 counting only the distinct ones).

The product of its (nonzero) digits is 27788223204, while the sum is 90.

The spelling of 9976770776799 in words is "nine trillion, nine hundred seventy-six billion, seven hundred seventy million, seven hundred seventy-six thousand, seven hundred ninety-nine".