90195877239 has 16 divisors (see below), whose sum is σ = 129771600000. Its totient is φ = 55393910496.

The previous prime is 90195877193. The next prime is 90195877273. The reversal of 90195877239 is 93277859109.

It is not a de Polignac number, because 90195877239 - 2¹² = 90195873143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90195877439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2297889 + ... + 2336810.

It is an arithmetic number, because the mean of its divisors is an integer number (8110725000).

Almost surely, 2^90195877239 is an apocalyptic number.

90195877239 is a deficient number, since it is larger than the sum of its proper divisors (39575722761).

90195877239 is a wasteful number, since it uses less digits than its factorization.

90195877239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4635214.

The product of its (nonzero) digits is 8573040, while the sum is 60.

The spelling of 90195877239 in words is "ninety billion, one hundred ninety-five million, eight hundred seventy-seven thousand, two hundred thirty-nine".