90902843132 has 24 divisors (see below), whose sum is σ = 159589399200. Its totient is φ = 45306106560.

The previous prime is 90902843131. The next prime is 90902843137. The reversal of 90902843132 is 23134820909.

It is a self number, because there is not a number n which added to its sum of digits gives 90902843132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90902843131) 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, 1555058 + ... + 1612454.

It is an arithmetic number, because the mean of its divisors is an integer number (6649558300).

Almost surely, 2^90902843132 is an apocalyptic number.

It is an amenable number.

90902843132 is a deficient number, since it is larger than the sum of its proper divisors (68686556068).

90902843132 is a wasteful number, since it uses less digits than its factorization.

90902843132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58661 (or 58659 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 90902843132 in words is "ninety billion, nine hundred two million, eight hundred forty-three thousand, one hundred thirty-two".