7894978948 has 12 divisors (see below), whose sum is σ = 13822569040. Its totient is φ = 3945673512.

The previous prime is 7894978829. The next prime is 7894978963. The reversal of 7894978948 is 8498794987.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444186 + ... + 461617.

Almost surely, 2^7894978948 is an apocalyptic number.

It is an amenable number.

7894978948 is a deficient number, since it is larger than the sum of its proper divisors (5927590092).

7894978948 is a wasteful number, since it uses less digits than its factorization.

7894978948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907986 (or 907984 counting only the distinct ones).

The product of its digits is 292626432, while the sum is 73.

The square root of 7894978948 is about 88853.6940593918. The cubic root of 7894978948 is about 1991.2096672945.

The spelling of 7894978948 in words is "seven billion, eight hundred ninety-four million, nine hundred seventy-eight thousand, nine hundred forty-eight".