7394878856 has 64 divisors (see below), whose sum is σ = 14808268800. Its totient is φ = 3453899328.

The previous prime is 7394878817. The next prime is 7394878871. The reversal of 7394878856 is 6588784937.

It is a junction number, because it is equal to n+sod(n) for n = 7394878792 and 7394878801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7116785 + ... + 7117823.

It is an arithmetic number, because the mean of its divisors is an integer number (231379200).

Almost surely, 2^7394878856 is an apocalyptic number.

It is an amenable number.

7394878856 is an abundant number, since it is smaller than the sum of its proper divisors (7413389944).

7394878856 is a wasteful number, since it uses less digits than its factorization.

7394878856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938 (or 1934 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 65.

The square root of 7394878856 is about 85993.4814738885. The cubic root of 7394878856 is about 1948.2455274234.

The spelling of 7394878856 in words is "seven billion, three hundred ninety-four million, eight hundred seventy-eight thousand, eight hundred fifty-six".