9977277801 has 16 divisors (see below), whose sum is σ = 14329221120. Its totient is φ = 6157084560.

The previous prime is 9977277787. The next prime is 9977277811. The reversal of 9977277801 is 1087727799.

It is not a de Polignac number, because 9977277801 - 2²⁹ = 9440406889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9977277811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2330091 + ... + 2334368.

It is an arithmetic number, because the mean of its divisors is an integer number (895576320).

Almost surely, 2^9977277801 is an apocalyptic number.

It is an amenable number.

9977277801 is a deficient number, since it is larger than the sum of its proper divisors (4351943319).

9977277801 is a wasteful number, since it uses less digits than its factorization.

9977277801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4664516.

The product of its (nonzero) digits is 3111696, while the sum is 57.

The square root of 9977277801 is about 99886.3243942833. The cubic root of 9977277801 is about 2152.8016694207.

The spelling of 9977277801 in words is "nine billion, nine hundred seventy-seven million, two hundred seventy-seven thousand, eight hundred one".