76973929538 has 24 divisors (see below), whose sum is σ = 130341618876. Its totient is φ = 34042520160.

The previous prime is 76973929537. The next prime is 76973929541. The reversal of 76973929538 is 83592937967.

It can be written as a sum of positive squares in 2 ways, for example, as 74942895049 + 2031034489 = 273757^2 + 45067^2 .

It is not an unprimeable number, because it can be changed into a prime (76973929537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4289345 + ... + 4307252.

Almost surely, 2^76973929538 is an apocalyptic number.

76973929538 is a deficient number, since it is larger than the sum of its proper divisors (53367689338).

76973929538 is a wasteful number, since it uses less digits than its factorization.

76973929538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8596658 (or 8596647 counting only the distinct ones).

The product of its digits is 154314720, while the sum is 68.

The spelling of 76973929538 in words is "seventy-six billion, nine hundred seventy-three million, nine hundred twenty-nine thousand, five hundred thirty-eight".