90118000487 has 4 divisors (see below), whose sum is σ = 90118607400. Its totient is φ = 90117393576.

The previous prime is 90118000481. The next prime is 90118000499. The reversal of 90118000487 is 78400081109.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 90118000487 - 2²⁴ = 90101223271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90118000487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90118000481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85193 + ... + 433005.

It is an arithmetic number, because the mean of its divisors is an integer number (22529651850).

Almost surely, 2^90118000487 is an apocalyptic number.

90118000487 is a deficient number, since it is larger than the sum of its proper divisors (606913).

90118000487 is a wasteful number, since it uses less digits than its factorization.

90118000487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606912.

The product of its (nonzero) digits is 16128, while the sum is 38.

The spelling of 90118000487 in words is "ninety billion, one hundred eighteen million, four hundred eighty-seven", and thus it is an aban number.