90993272833 has 4 divisors (see below), whose sum is σ = 91843677360. Its totient is φ = 90142868308.

The previous prime is 90993272813. The next prime is 90993272863. The reversal of 90993272833 is 33827239909.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90993272833 - 2²⁵ = 90959718401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90993272813) 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, 425202103 + ... + 425202316.

It is an arithmetic number, because the mean of its divisors is an integer number (22960919340).

Almost surely, 2^90993272833 is an apocalyptic number.

It is an amenable number.

90993272833 is a deficient number, since it is larger than the sum of its proper divisors (850404527).

90993272833 is a wasteful number, since it uses less digits than its factorization.

90993272833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850404526.

The product of its (nonzero) digits is 4408992, while the sum is 55.

The spelling of 90993272833 in words is "ninety billion, nine hundred ninety-three million, two hundred seventy-two thousand, eight hundred thirty-three".