90903238412 has 48 divisors (see below), whose sum is σ = 188147742720. Its totient is φ = 37600718400.

The previous prime is 90903238409. The next prime is 90903238427. The reversal of 90903238412 is 21483230909.

It is a self number, because there is not a number n which added to its sum of digits gives 90903238412.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2246237 + ... + 2286347.

It is an arithmetic number, because the mean of its divisors is an integer number (3919744640).

Almost surely, 2^90903238412 is an apocalyptic number.

It is an amenable number.

90903238412 is an abundant number, since it is smaller than the sum of its proper divisors (97244504308).

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

90903238412 is a wasteful number, since it uses less digits than its factorization.

90903238412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42942 (or 42940 counting only the distinct ones).

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

The spelling of 90903238412 in words is "ninety billion, nine hundred three million, two hundred thirty-eight thousand, four hundred twelve".