7871377916 has 12 divisors (see below), whose sum is σ = 13775752200. Its totient is φ = 3935448720.

The previous prime is 7871377909. The next prime is 7871377919. The reversal of 7871377916 is 6197731787.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7871377919) 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, 28010 + ... + 128558.

It is an arithmetic number, because the mean of its divisors is an integer number (1147979350).

Almost surely, 2^7871377916 is an apocalyptic number.

It is an amenable number.

7871377916 is a deficient number, since it is larger than the sum of its proper divisors (5904374284).

7871377916 is a wasteful number, since it uses less digits than its factorization.

7871377916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120124 (or 120122 counting only the distinct ones).

The product of its digits is 3111696, while the sum is 56.

The square root of 7871377916 is about 88720.7862679316. The cubic root of 7871377916 is about 1989.2235311509.

The spelling of 7871377916 in words is "seven billion, eight hundred seventy-one million, three hundred seventy-seven thousand, nine hundred sixteen".