77913414177 has 4 divisors (see below), whose sum is σ = 103884552240. Its totient is φ = 51942276116.

The previous prime is 77913414169. The next prime is 77913414179. The reversal of 77913414177 is 77141431977.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77141431977 = 3 ⋅25713810659.

It is a cyclic number.

It is not a de Polignac number, because 77913414177 - 2³ = 77913414169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77913414179) 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, 12985569027 + ... + 12985569032.

It is an arithmetic number, because the mean of its divisors is an integer number (25971138060).

Almost surely, 2^77913414177 is an apocalyptic number.

It is an amenable number.

77913414177 is a deficient number, since it is larger than the sum of its proper divisors (25971138063).

77913414177 is a wasteful number, since it uses less digits than its factorization.

77913414177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25971138062.

The product of its digits is 1037232, while the sum is 51.

The spelling of 77913414177 in words is "seventy-seven billion, nine hundred thirteen million, four hundred fourteen thousand, one hundred seventy-seven".