78711427877 has 8 divisors (see below), whose sum is σ = 80001881952. Its totient is φ = 77424375600.

The previous prime is 78711427831. The next prime is 78711427891. The reversal of 78711427877 is 77872411787.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78711427877 - 2²⁰ = 78710379301 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 (78711427807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803774 + ... + 896367.

It is an arithmetic number, because the mean of its divisors is an integer number (10000235244).

Almost surely, 2^78711427877 is an apocalyptic number.

It is an amenable number.

78711427877 is a deficient number, since it is larger than the sum of its proper divisors (1290454075).

78711427877 is a wasteful number, since it uses less digits than its factorization.

78711427877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700899.

The product of its digits is 8605184, while the sum is 59.

The spelling of 78711427877 in words is "seventy-eight billion, seven hundred eleven million, four hundred twenty-seven thousand, eight hundred seventy-seven".