77083688052 has 36 divisors (see below), whose sum is σ = 222686210656. Its totient is φ = 22023910800.

The previous prime is 77083688051. The next prime is 77083688057. The reversal of 77083688052 is 25088638077.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 77083688052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77083688051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152943574 + ... + 152944077.

Almost surely, 2^77083688052 is an apocalyptic number.

It is an amenable number.

77083688052 is an abundant number, since it is smaller than the sum of its proper divisors (145602522604).

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

77083688052 is a wasteful number, since it uses less digits than its factorization.

77083688052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305887668 (or 305887663 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 77083688052 in words is "seventy-seven billion, eighty-three million, six hundred eighty-eight thousand, fifty-two".