977848848779 has 16 divisors (see below), whose sum is σ = 1082786904576. Its totient is φ = 875587548000.

The previous prime is 977848848727. The next prime is 977848848793.

977848848779 is nontrivially palindromic in base 10.

977848848779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 977848848779 - 2²⁸ = 977580413323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 977848848779.

It is not an unprimeable number, because it can be changed into a prime (977848848079) 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, 6969629 + ... + 7108545.

It is an arithmetic number, because the mean of its divisors is an integer number (67674181536).

Almost surely, 2^977848848779 is an apocalyptic number.

977848848779 is a deficient number, since it is larger than the sum of its proper divisors (104938055797).

977848848779 is a wasteful number, since it uses less digits than its factorization.

977848848779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148546.

The product of its digits is 12745506816, while the sum is 86.

The spelling of 977848848779 in words is "nine hundred seventy-seven billion, eight hundred forty-eight million, eight hundred forty-eight thousand, seven hundred seventy-nine".