77636775344 has 20 divisors (see below), whose sum is σ = 151910574720. Its totient is φ = 38434046400.

The previous prime is 77636775341. The next prime is 77636775353. The reversal of 77636775344 is 44357763677.

It is not an unprimeable number, because it can be changed into a prime (77636775341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24019664 + ... + 24022895.

It is an arithmetic number, because the mean of its divisors is an integer number (7595528736).

Almost surely, 2^77636775344 is an apocalyptic number.

It is an amenable number.

77636775344 is a deficient number, since it is larger than the sum of its proper divisors (74273799376).

77636775344 is a wasteful number, since it uses less digits than its factorization.

77636775344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48042668 (or 48042662 counting only the distinct ones).

The product of its digits is 62233920, while the sum is 59.

The spelling of 77636775344 in words is "seventy-seven billion, six hundred thirty-six million, seven hundred seventy-five thousand, three hundred forty-four".