77736622344 has 48 divisors (see below), whose sum is σ = 205108423920. Its totient is φ = 24548404320.

The previous prime is 77736622309. The next prime is 77736622351. The reversal of 77736622344 is 44322663777.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4477522 + ... + 4494849.

It is an arithmetic number, because the mean of its divisors is an integer number (4273092165).

Almost surely, 2^77736622344 is an apocalyptic number.

It is an amenable number.

77736622344 is an abundant number, since it is smaller than the sum of its proper divisors (127371801576).

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

77736622344 is a wasteful number, since it uses less digits than its factorization.

77736622344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8972418 (or 8972395 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 51.

The spelling of 77736622344 in words is "seventy-seven billion, seven hundred thirty-six million, six hundred twenty-two thousand, three hundred forty-four".