1976568868 has 12 divisors (see below), whose sum is σ = 3459406860. Its totient is φ = 988166912.

The previous prime is 1976568859. The next prime is 1976568883. The reversal of 1976568868 is 8688656791.

It can be written as a sum of positive squares in 2 ways, for example, as 1576248804 + 400320064 = 39702^2 + 20008^2 .

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, 16380 + ... + 64972.

It is an arithmetic number, because the mean of its divisors is an integer number (288283905).

Almost surely, 2^1976568868 is an apocalyptic number.

It is an amenable number.

1976568868 is a deficient number, since it is larger than the sum of its proper divisors (1482837992).

1976568868 is a wasteful number, since it uses less digits than its factorization.

1976568868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58766 (or 58764 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 64.

The square root of 1976568868 is about 44458.6197266627. The cubic root of 1976568868 is about 1254.9814800207.

The spelling of 1976568868 in words is "one billion, nine hundred seventy-six million, five hundred sixty-eight thousand, eight hundred sixty-eight".