90368386493 has 8 divisors (see below), whose sum is σ = 112667079360. Its totient is φ = 70416924480.

The previous prime is 90368386457. The next prime is 90368386501. The reversal of 90368386493 is 39468386309.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-90368386493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90368386193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586807628 + ... + 586807781.

It is an arithmetic number, because the mean of its divisors is an integer number (14083384920).

Almost surely, 2^90368386493 is an apocalyptic number.

It is an amenable number.

90368386493 is a deficient number, since it is larger than the sum of its proper divisors (22298692867).

90368386493 is a wasteful number, since it uses less digits than its factorization.

90368386493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173615427.

The product of its (nonzero) digits is 20155392, while the sum is 59.

The spelling of 90368386493 in words is "ninety billion, three hundred sixty-eight million, three hundred eighty-six thousand, four hundred ninety-three".