77700770940 has 96 divisors (see below), whose sum is σ = 246629214720. Its totient is φ = 18119690496.

The previous prime is 77700770923. The next prime is 77700770981. The reversal of 77700770940 is 4907700777.

It is a self number, because there is not a number n which added to its sum of digits gives 77700770940.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 2606664 + ... + 2636303.

It is an arithmetic number, because the mean of its divisors is an integer number (2569054320).

Almost surely, 2^77700770940 is an apocalyptic number.

It is an amenable number.

77700770940 is an abundant number, since it is smaller than the sum of its proper divisors (168928443780).

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

77700770940 is a wasteful number, since it uses less digits than its factorization.

77700770940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5243011 (or 5243009 counting only the distinct ones).

The product of its (nonzero) digits is 605052, while the sum is 48.

The spelling of 77700770940 in words is "seventy-seven billion, seven hundred million, seven hundred seventy thousand, nine hundred forty".