90768058893 has 16 divisors (see below), whose sum is σ = 136091336640. Its totient is φ = 59782977072.

The previous prime is 90768058867. The next prime is 90768058903. The reversal of 90768058893 is 39885086709.

It is not a de Polignac number, because 90768058893 - 2⁸ = 90768058637 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 90768058893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90768058793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20249446 + ... + 20253927.

It is an arithmetic number, because the mean of its divisors is an integer number (8505708540).

Almost surely, 2^90768058893 is an apocalyptic number.

It is an amenable number.

90768058893 is a deficient number, since it is larger than the sum of its proper divisors (45323277747).

90768058893 is a wasteful number, since it uses less digits than its factorization.

90768058893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40503465 (or 40503459 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 90768058893 in words is "ninety billion, seven hundred sixty-eight million, fifty-eight thousand, eight hundred ninety-three".