90802623489 has 16 divisors (see below), whose sum is σ = 121315544064. Its totient is φ = 60412453200.

The previous prime is 90802623469. The next prime is 90802623523. The reversal of 90802623489 is 98432620809.

It is not a de Polignac number, because 90802623489 - 2¹² = 90802619393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90802623469) 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, 11958084 + ... + 11965674.

It is an arithmetic number, because the mean of its divisors is an integer number (7582221504).

Almost surely, 2^90802623489 is an apocalyptic number.

It is an amenable number.

90802623489 is a deficient number, since it is larger than the sum of its proper divisors (30512920575).

90802623489 is a wasteful number, since it uses less digits than its factorization.

90802623489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15148.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 90802623489 in words is "ninety billion, eight hundred two million, six hundred twenty-three thousand, four hundred eighty-nine".