90493859502 has 112 divisors (see below), whose sum is σ = 220077456192. Its totient is φ = 27785825280.

The previous prime is 90493859441. The next prime is 90493859531. The reversal of 90493859502 is 20595839409.

It is a happy number.

90493859502 is a `hidden beast` number, since 9 + 0 + 49 + 3 + 8 + 595 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1126102 + ... + 1203782.

Almost surely, 2^90493859502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90493859502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110038728096).

90493859502 is an abundant number, since it is smaller than the sum of its proper divisors (129583596690).

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

90493859502 is a wasteful number, since it uses less digits than its factorization.

90493859502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77765 (or 77750 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The spelling of 90493859502 in words is "ninety billion, four hundred ninety-three million, eight hundred fifty-nine thousand, five hundred two".