90802623490 has 16 divisors (see below), whose sum is σ = 165746761920. Its totient is φ = 35809485040.

The previous prime is 90802623469. The next prime is 90802623523. The reversal of 90802623490 is 9432620809.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63944800 + ... + 63946219.

It is an arithmetic number, because the mean of its divisors is an integer number (10359172620).

Almost surely, 2^90802623490 is an apocalyptic number.

90802623490 is a deficient number, since it is larger than the sum of its proper divisors (74944138430).

90802623490 is a wasteful number, since it uses less digits than its factorization.

90802623490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127891097.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 90802623490 in words is "ninety billion, eight hundred two million, six hundred twenty-three thousand, four hundred ninety".