76464221280 has 96 divisors (see below), whose sum is σ = 251334607104. Its totient is φ = 19503914496.

The previous prime is 76464221261. The next prime is 76464221291. The reversal of 76464221280 is 8212246467.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3452014 + ... + 3474093.

It is an arithmetic number, because the mean of its divisors is an integer number (2618068824).

Almost surely, 2^76464221280 is an apocalyptic number.

It is an amenable number.

76464221280 is an abundant number, since it is smaller than the sum of its proper divisors (174870385824).

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

76464221280 is a wasteful number, since it uses less digits than its factorization.

76464221280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6926148 (or 6926140 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 76464221280 in words is "seventy-six billion, four hundred sixty-four million, two hundred twenty-one thousand, two hundred eighty".