78887876877 has 24 divisors (see below), whose sum is σ = 114241944960. Its totient is φ = 52456965120.

The previous prime is 78887876869. The next prime is 78887876909. The reversal of 78887876877 is 77867878887.

It is not a de Polignac number, because 78887876877 - 2³ = 78887876869 is a prime.

It is a super-3 number, since 3×78887876877³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 78887876796 and 78887876805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78887876867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5862477 + ... + 5875917.

It is an arithmetic number, because the mean of its divisors is an integer number (4760081040).

Almost surely, 2^78887876877 is an apocalyptic number.

It is an amenable number.

78887876877 is a deficient number, since it is larger than the sum of its proper divisors (35354068083).

78887876877 is a wasteful number, since it uses less digits than its factorization.

78887876877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15073 (or 15070 counting only the distinct ones).

The product of its digits is 3304390656, while the sum is 81.

The spelling of 78887876877 in words is "seventy-eight billion, eight hundred eighty-seven million, eight hundred seventy-six thousand, eight hundred seventy-seven".