76639974330 has 16 divisors (see below), whose sum is σ = 183935938464. Its totient is φ = 20437326480.

The previous prime is 76639974329. The next prime is 76639974337. The reversal of 76639974330 is 3347993667.

It is not an unprimeable number, because it can be changed into a prime (76639974337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1277332876 + ... + 1277332935.

It is an arithmetic number, because the mean of its divisors is an integer number (11495996154).

Almost surely, 2^76639974330 is an apocalyptic number.

76639974330 is an abundant number, since it is smaller than the sum of its proper divisors (107295964134).

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

76639974330 is a wasteful number, since it uses less digits than its factorization.

76639974330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554665821.

The product of its (nonzero) digits is 15431472, while the sum is 57.

The spelling of 76639974330 in words is "seventy-six billion, six hundred thirty-nine million, nine hundred seventy-four thousand, three hundred thirty".