90777609684 has 48 divisors (see below), whose sum is σ = 235365930240. Its totient is φ = 30257072640.

The previous prime is 90777609649. The next prime is 90777609701. The reversal of 90777609684 is 48690677709.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2537844 + ... + 2573364.

It is an arithmetic number, because the mean of its divisors is an integer number (4903456880).

Almost surely, 2^90777609684 is an apocalyptic number.

It is an amenable number.

90777609684 is an abundant number, since it is smaller than the sum of its proper divisors (144588320556).

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

90777609684 is a wasteful number, since it uses less digits than its factorization.

90777609684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59197 (or 59189 counting only the distinct ones).

The product of its (nonzero) digits is 32006016, while the sum is 63.

The spelling of 90777609684 in words is "ninety billion, seven hundred seventy-seven million, six hundred nine thousand, six hundred eighty-four".