90187102828 has 24 divisors (see below), whose sum is σ = 158518760400. Its totient is φ = 44896448448.

The previous prime is 90187102807. The next prime is 90187102829. The reversal of 90187102828 is 82820178109.

It is not an unprimeable number, because it can be changed into a prime (90187102829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 814663 + ... + 918721.

It is an arithmetic number, because the mean of its divisors is an integer number (6604948350).

Almost surely, 2^90187102828 is an apocalyptic number.

It is an amenable number.

90187102828 is a deficient number, since it is larger than the sum of its proper divisors (68331657572).

90187102828 is a wasteful number, since it uses less digits than its factorization.

90187102828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105009 (or 105007 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 46.

The spelling of 90187102828 in words is "ninety billion, one hundred eighty-seven million, one hundred two thousand, eight hundred twenty-eight".