77712795044 has 24 divisors (see below), whose sum is σ = 140772817920. Its totient is φ = 37508528736.

The previous prime is 77712795001. The next prime is 77712795053. The reversal of 77712795044 is 44059721777.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 2048474 + ... + 2086065.

It is an arithmetic number, because the mean of its divisors is an integer number (5865534080).

Almost surely, 2^77712795044 is an apocalyptic number.

77712795044 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

77712795044 is a deficient number, since it is larger than the sum of its proper divisors (63060022876).

77712795044 is a wasteful number, since it uses less digits than its factorization.

77712795044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4134707 (or 4134705 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 53.

The spelling of 77712795044 in words is "seventy-seven billion, seven hundred twelve million, seven hundred ninety-five thousand, forty-four".