90331128284 has 24 divisors (see below), whose sum is σ = 163257024000. Its totient is φ = 43687661040.

The previous prime is 90331128269. The next prime is 90331128287. The reversal of 90331128284 is 48282113309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90331128287) 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, 86747 + ... + 433805.

It is an arithmetic number, because the mean of its divisors is an integer number (6802376000).

Almost surely, 2^90331128284 is an apocalyptic number.

It is an amenable number.

90331128284 is a deficient number, since it is larger than the sum of its proper divisors (72925895716).

90331128284 is a wasteful number, since it uses less digits than its factorization.

90331128284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349193 (or 349191 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 90331128284 in words is "ninety billion, three hundred thirty-one million, one hundred twenty-eight thousand, two hundred eighty-four".