90998052861 has 8 divisors (see below), whose sum is σ = 123387190560. Its totient is φ = 59637141872.

The previous prime is 90998052833. The next prime is 90998052877. The reversal of 90998052861 is 16825089909.

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 90998052861 - 2⁶ = 90998052797 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90998052811) 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, 257056470 + ... + 257056823.

It is an arithmetic number, because the mean of its divisors is an integer number (15423398820).

Almost surely, 2^90998052861 is an apocalyptic number.

It is an amenable number.

90998052861 is a deficient number, since it is larger than the sum of its proper divisors (32389137699).

90998052861 is a wasteful number, since it uses less digits than its factorization.

90998052861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514113355.

The product of its (nonzero) digits is 2799360, while the sum is 57.

The spelling of 90998052861 in words is "ninety billion, nine hundred ninety-eight million, fifty-two thousand, eight hundred sixty-one".