90927281911 has 4 divisors (see below), whose sum is σ = 91134406000. Its totient is φ = 90720157824.

The previous prime is 90927281891. The next prime is 90927281933. The reversal of 90927281911 is 11918272909.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90927281911 - 2²¹ = 90925184759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90927281981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103561386 + ... + 103562263.

It is an arithmetic number, because the mean of its divisors is an integer number (22783601500).

Almost surely, 2^90927281911 is an apocalyptic number.

90927281911 is a deficient number, since it is larger than the sum of its proper divisors (207124089).

90927281911 is a wasteful number, since it uses less digits than its factorization.

90927281911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207124088.

The product of its (nonzero) digits is 163296, while the sum is 49.

The spelling of 90927281911 in words is "ninety billion, nine hundred twenty-seven million, two hundred eighty-one thousand, nine hundred eleven".