90658135768 has 64 divisors (see below), whose sum is σ = 175129920000. Its totient is φ = 43980596352.

The previous prime is 90658135759. The next prime is 90658135787. The reversal of 90658135768 is 86753185609.

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, 15523393 + ... + 15529231.

It is an arithmetic number, because the mean of its divisors is an integer number (2736405000).

Almost surely, 2^90658135768 is an apocalyptic number.

It is an amenable number.

90658135768 is a deficient number, since it is larger than the sum of its proper divisors (84471784232).

90658135768 is a wasteful number, since it uses less digits than its factorization.

90658135768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6344 (or 6340 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 58.

The spelling of 90658135768 in words is "ninety billion, six hundred fifty-eight million, one hundred thirty-five thousand, seven hundred sixty-eight".