77164946331 has 16 divisors (see below), whose sum is σ = 112391020800. Its totient is φ = 46703676320.

The previous prime is 77164946323. The next prime is 77164946359. The reversal of 77164946331 is 13364946177.

It is a cyclic number.

It is not a de Polignac number, because 77164946331 - 2³ = 77164946323 is a prime.

It is a super-2 number, since 2×77164946331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77164946731) 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, 1549056 + ... + 1598093.

It is an arithmetic number, because the mean of its divisors is an integer number (7024438800).

Almost surely, 2^77164946331 is an apocalyptic number.

77164946331 is a deficient number, since it is larger than the sum of its proper divisors (35226074469).

77164946331 is a wasteful number, since it uses less digits than its factorization.

77164946331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147906.

The product of its digits is 2286144, while the sum is 51.

The spelling of 77164946331 in words is "seventy-seven billion, one hundred sixty-four million, nine hundred forty-six thousand, three hundred thirty-one".