78077162371 has 16 divisors (see below), whose sum is σ = 88433130240. Its totient is φ = 68430360960.

The previous prime is 78077162351. The next prime is 78077162377. The reversal of 78077162371 is 17326177087.

It is not a de Polignac number, because 78077162371 - 2⁷ = 78077162243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78077162377) 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, 1806376 + ... + 1849093.

It is an arithmetic number, because the mean of its divisors is an integer number (5527070640).

Almost surely, 2^78077162371 is an apocalyptic number.

78077162371 is a deficient number, since it is larger than the sum of its proper divisors (10355967869).

78077162371 is a wasteful number, since it uses less digits than its factorization.

78077162371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3655566.

The product of its (nonzero) digits is 691488, while the sum is 49.

The spelling of 78077162371 in words is "seventy-eight billion, seventy-seven million, one hundred sixty-two thousand, three hundred seventy-one".