7911478008 has 160 divisors (see below), whose sum is σ = 26142504960. Its totient is φ = 2187466560.

The previous prime is 7911477941. The next prime is 7911478019. The reversal of 7911478008 is 8008741197.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 112485 + ... + 168747.

It is an arithmetic number, because the mean of its divisors is an integer number (163390656).

Almost surely, 2^7911478008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7911478008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13071252480).

7911478008 is an abundant number, since it is smaller than the sum of its proper divisors (18231026952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7911478008 is a wasteful number, since it uses less digits than its factorization.

7911478008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56319 (or 56306 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The square root of 7911478008 is about 88946.4895765988. The cubic root of 7911478008 is about 1992.5957899968.

The spelling of 7911478008 in words is "seven billion, nine hundred eleven million, four hundred seventy-eight thousand, eight".