1976618968 has 48 divisors (see below), whose sum is σ = 3951090000. Its totient is φ = 926845440.

The previous prime is 1976618923. The next prime is 1976618989. The reversal of 1976618968 is 8698166791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 717658 + ... + 720406.

It is an arithmetic number, because the mean of its divisors is an integer number (82314375).

Almost surely, 2^1976618968 is an apocalyptic number.

It is an amenable number.

1976618968 is a deficient number, since it is larger than the sum of its proper divisors (1974471032).

1976618968 is a wasteful number, since it uses less digits than its factorization.

1976618968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100 (or 3079 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 61.

The square root of 1976618968 is about 44459.1831683849. The cubic root of 1976618968 is about 1254.9920832503.

It can be divided in two parts, 1976 and 618968, that added together give a square (620944 = 788²).

The spelling of 1976618968 in words is "one billion, nine hundred seventy-six million, six hundred eighteen thousand, nine hundred sixty-eight".