76442788989 has 128 divisors (see below), whose sum is σ = 140124979200. Its totient is φ = 40249198080.

The previous prime is 76442788979. The next prime is 76442788991. The reversal of 76442788989 is 98988724467.

It is not a de Polignac number, because 76442788989 - 2⁵ = 76442788957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76442788979) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12400422 + ... + 12406584.

It is an arithmetic number, because the mean of its divisors is an integer number (1094726400).

Almost surely, 2^76442788989 is an apocalyptic number.

It is an amenable number.

76442788989 is a deficient number, since it is larger than the sum of its proper divisors (63682190211).

76442788989 is a wasteful number, since it uses less digits than its factorization.

76442788989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6312 (or 6306 counting only the distinct ones).

The product of its digits is 390168576, while the sum is 72.

The spelling of 76442788989 in words is "seventy-six billion, four hundred forty-two million, seven hundred eighty-eight thousand, nine hundred eighty-nine".