90831412919 has 16 divisors (see below), whose sum is σ = 98806579200. Its totient is φ = 83001619296.

The previous prime is 90831412909. The next prime is 90831412921. The reversal of 90831412919 is 91921413809.

It is a cyclic number.

It is not a de Polignac number, because 90831412919 - 2⁸ = 90831412663 is a prime.

It is a super-2 number, since 2×90831412919² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90831412909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431402 + ... + 606440.

It is an arithmetic number, because the mean of its divisors is an integer number (6175411200).

Almost surely, 2^90831412919 is an apocalyptic number.

90831412919 is a deficient number, since it is larger than the sum of its proper divisors (7975166281).

90831412919 is a wasteful number, since it uses less digits than its factorization.

90831412919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175454.

The product of its (nonzero) digits is 139968, while the sum is 47.

The spelling of 90831412919 in words is "ninety billion, eight hundred thirty-one million, four hundred twelve thousand, nine hundred nineteen".