90281272092 has 24 divisors (see below), whose sum is σ = 229806874752. Its totient is φ = 27357961200.

The previous prime is 90281272087. The next prime is 90281272111. The reversal of 90281272092 is 29027218209.

It is a congruent number.

It is an unprimeable number.

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, 341974384 + ... + 341974647.

It is an arithmetic number, because the mean of its divisors is an integer number (9575286448).

Almost surely, 2^90281272092 is an apocalyptic number.

It is an amenable number.

90281272092 is an abundant number, since it is smaller than the sum of its proper divisors (139525602660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90281272092 is a wasteful number, since it uses less digits than its factorization.

90281272092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683949049 (or 683949047 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

It can be divided in two parts, 90 and 281272092, that added together give a palindrome (281272182).

The spelling of 90281272092 in words is "ninety billion, two hundred eighty-one million, two hundred seventy-two thousand, ninety-two".