7855478476 has 12 divisors (see below), whose sum is σ = 14082382440. Its totient is φ = 3831940640.

The previous prime is 7855478453. The next prime is 7855478479. The reversal of 7855478476 is 6748745587.

It is not an unprimeable number, because it can be changed into a prime (7855478479) 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, 23949466 + ... + 23949793.

It is an arithmetic number, because the mean of its divisors is an integer number (1173531870).

Almost surely, 2^7855478476 is an apocalyptic number.

It is an amenable number.

7855478476 is a deficient number, since it is larger than the sum of its proper divisors (6226903964).

7855478476 is a wasteful number, since it uses less digits than its factorization.

7855478476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47899304 (or 47899302 counting only the distinct ones).

The product of its digits is 52684800, while the sum is 61.

The square root of 7855478476 is about 88631.1371697329. The cubic root of 7855478476 is about 1987.8832804634.

The spelling of 7855478476 in words is "seven billion, eight hundred fifty-five million, four hundred seventy-eight thousand, four hundred seventy-six".