78073736976 has 50 divisors (see below), whose sum is σ = 225968049582. Its totient is φ = 26024578560.

The previous prime is 78073736957. The next prime is 78073736987. The reversal of 78073736976 is 67963737087.

It can be written as a sum of positive squares in only one way, i.e., 78021896976 + 51840000 = 279324^2 + 7200^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 30119745 + ... + 30122336.

Almost surely, 2^78073736976 is an apocalyptic number.

It is an amenable number.

78073736976 is an abundant number, since it is smaller than the sum of its proper divisors (147894312606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78073736976 is a wasteful number, since it uses less digits than its factorization.

78073736976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60242101 (or 60242086 counting only the distinct ones).

The product of its (nonzero) digits is 56010528, while the sum is 63.

The spelling of 78073736976 in words is "seventy-eight billion, seventy-three million, seven hundred thirty-six thousand, nine hundred seventy-six".