77912093167 has 4 divisors (see below), whose sum is σ = 78668521360. Its totient is φ = 77155664976.

The previous prime is 77912093159. The next prime is 77912093173. The reversal of 77912093167 is 76139021977.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76139021977 = 47 ⋅1619979191.

It is a cyclic number.

It is not a de Polignac number, because 77912093167 - 2³ = 77912093159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77912093197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378213942 + ... + 378214147.

It is an arithmetic number, because the mean of its divisors is an integer number (19667130340).

Almost surely, 2^77912093167 is an apocalyptic number.

77912093167 is a deficient number, since it is larger than the sum of its proper divisors (756428193).

77912093167 is a wasteful number, since it uses less digits than its factorization.

77912093167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756428192.

The product of its (nonzero) digits is 1000188, while the sum is 52.

The spelling of 77912093167 in words is "seventy-seven billion, nine hundred twelve million, ninety-three thousand, one hundred sixty-seven".