90615197289 has 8 divisors (see below), whose sum is σ = 120931417600. Its totient is φ = 60354554256.

The previous prime is 90615197279. The next prime is 90615197297. The reversal of 90615197289 is 98279151609.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90615197289 - 2⁴ = 90615197273 is a prime.

It is a super-2 number, since 2×90615197289² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90615197219) 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 7 ways as a sum of consecutive naturals, for example, 13890514 + ... + 13897035.

It is an arithmetic number, because the mean of its divisors is an integer number (15116427200).

Almost surely, 2^90615197289 is an apocalyptic number.

It is an amenable number.

90615197289 is a deficient number, since it is larger than the sum of its proper divisors (30316220311).

90615197289 is a wasteful number, since it uses less digits than its factorization.

90615197289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27788639.

The product of its (nonzero) digits is 2449440, while the sum is 57.

The spelling of 90615197289 in words is "ninety billion, six hundred fifteen million, one hundred ninety-seven thousand, two hundred eighty-nine".