76489477720 has 32 divisors (see below), whose sum is σ = 172709482320. Its totient is φ = 30487674240.

The previous prime is 76489477711. The next prime is 76489477747. The reversal of 76489477720 is 2777498467.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3367191 + ... + 3389830.

Almost surely, 2^76489477720 is an apocalyptic number.

It is an amenable number.

76489477720 is an abundant number, since it is smaller than the sum of its proper divisors (96220004600).

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

76489477720 is a wasteful number, since it uses less digits than its factorization.

76489477720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6757315 (or 6757311 counting only the distinct ones).

The product of its (nonzero) digits is 33191424, while the sum is 61.

The spelling of 76489477720 in words is "seventy-six billion, four hundred eighty-nine million, four hundred seventy-seven thousand, seven hundred twenty".