77132908944 has 240 divisors, whose sum is σ = 269046668800. Its totient is φ = 20084972544.

The previous prime is 77132908939. The next prime is 77132908967. The reversal of 77132908944 is 44980923177.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 997962 + ... + 1072470.

Almost surely, 2^77132908944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77132908944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134523334400).

77132908944 is an abundant number, since it is smaller than the sum of its proper divisors (191913759856).

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

77132908944 is a wasteful number, since it uses less digits than its factorization.

77132908944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74622 (or 74613 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 77132908944 in words is "seventy-seven billion, one hundred thirty-two million, nine hundred eight thousand, nine hundred forty-four".