90885198959 has 8 divisors (see below), whose sum is σ = 92430858240. Its totient is φ = 89339714200.

The previous prime is 90885198923. The next prime is 90885198967. The reversal of 90885198959 is 95989158809.

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

It is a cyclic number.

It is not a de Polignac number, because 90885198959 - 2¹² = 90885194863 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90885198892 and 90885198901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90885198919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1420754 + ... + 1483344.

It is an arithmetic number, because the mean of its divisors is an integer number (11553857280).

Almost surely, 2^90885198959 is an apocalyptic number.

90885198959 is a deficient number, since it is larger than the sum of its proper divisors (1545659281).

90885198959 is a wasteful number, since it uses less digits than its factorization.

90885198959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87261.

The product of its (nonzero) digits is 83980800, while the sum is 71.

The spelling of 90885198959 in words is "ninety billion, eight hundred eighty-five million, one hundred ninety-eight thousand, nine hundred fifty-nine".