77639004330 has 32 divisors (see below), whose sum is σ = 187476773184. Its totient is φ = 20576716416.

The previous prime is 77639004283. The next prime is 77639004383. The reversal of 77639004330 is 3340093677.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7933659 + ... + 7943438.

It is an arithmetic number, because the mean of its divisors is an integer number (5858649162).

Almost surely, 2^77639004330 is an apocalyptic number.

77639004330 is an abundant number, since it is smaller than the sum of its proper divisors (109837768854).

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

77639004330 is a wasteful number, since it uses less digits than its factorization.

77639004330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15877270.

The product of its (nonzero) digits is 285768, while the sum is 42.

The spelling of 77639004330 in words is "seventy-seven billion, six hundred thirty-nine million, four thousand, three hundred thirty".