90903734019 has 12 divisors (see below), whose sum is σ = 150063307056. Its totient is φ = 51944990832.

The previous prime is 90903733937. The next prime is 90903734099. The reversal of 90903734019 is 91043730909.

90903734019 is a `hidden beast` number, since 90 + 90 + 3 + 73 + 401 + 9 = 666.

It is not a de Polignac number, because 90903734019 - 2²⁰ = 90902685443 is a prime.

It is a super-2 number, since 2×90903734019² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (90903734099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 721458144 + ... + 721458269.

It is an arithmetic number, because the mean of its divisors is an integer number (12505275588).

Almost surely, 2^90903734019 is an apocalyptic number.

90903734019 is a deficient number, since it is larger than the sum of its proper divisors (59159573037).

90903734019 is a wasteful number, since it uses less digits than its factorization.

90903734019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442916426 (or 1442916423 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The spelling of 90903734019 in words is "ninety billion, nine hundred three million, seven hundred thirty-four thousand, nineteen".