77925652977 has 16 divisors (see below), whose sum is σ = 104604950528. Its totient is φ = 51598501200.

The previous prime is 77925652969. The next prime is 77925652991.

77925652977 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 77925652977 - 2³ = 77925652969 is a prime.

It is a Duffinian number.

Its product of digits (116688600) is a multiple of the sum of its prime divisors (26460).

It is not an unprimeable number, because it can be changed into a prime (77925602977) 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, 5502768 + ... + 5516910.

It is an arithmetic number, because the mean of its divisors is an integer number (6537809408).

Almost surely, 2^77925652977 is an apocalyptic number.

It is an amenable number.

77925652977 is a deficient number, since it is larger than the sum of its proper divisors (26679297551).

77925652977 is a wasteful number, since it uses less digits than its factorization.

77925652977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26460.

The product of its digits is 116688600, while the sum is 66.

The spelling of 77925652977 in words is "seventy-seven billion, nine hundred twenty-five million, six hundred fifty-two thousand, nine hundred seventy-seven".