77739983328 has 72 divisors (see below), whose sum is σ = 237384606312. Its totient is φ = 22211422464.

The previous prime is 77739983309. The next prime is 77739983341. The reversal of 77739983328 is 82338993777.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8258475 + ... + 8267882.

It is an arithmetic number, because the mean of its divisors is an integer number (3297008421).

Almost surely, 2^77739983328 is an apocalyptic number.

It is an amenable number.

77739983328 is an abundant number, since it is smaller than the sum of its proper divisors (159644622984).

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

77739983328 is a wasteful number, since it uses less digits than its factorization.

77739983328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16526384 (or 16526369 counting only the distinct ones).

The product of its digits is 96018048, while the sum is 66.

The spelling of 77739983328 in words is "seventy-seven billion, seven hundred thirty-nine million, nine hundred eighty-three thousand, three hundred twenty-eight".