90872730192 has 20 divisors (see below), whose sum is σ = 234754553120. Its totient is φ = 30290910048.

The previous prime is 90872730167. The next prime is 90872730199. The reversal of 90872730192 is 29103727809.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1893181879 = 90872730192 / (9 + 0 + 8 + 7 + 2 + 7 + 3 + 0 + 1 + 9 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90872730199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946590892 + ... + 946590987.

It is an arithmetic number, because the mean of its divisors is an integer number (11737727656).

Almost surely, 2^90872730192 is an apocalyptic number.

It is an amenable number.

90872730192 is an abundant number, since it is smaller than the sum of its proper divisors (143881822928).

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

90872730192 is a wasteful number, since it uses less digits than its factorization.

90872730192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893181890 (or 1893181884 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The spelling of 90872730192 in words is "ninety billion, eight hundred seventy-two million, seven hundred thirty thousand, one hundred ninety-two".