90075083139218 has 16 divisors (see below), whose sum is σ = 138982361890680. Its totient is φ = 43756745164800.

The previous prime is 90075083139143. The next prime is 90075083139257. The reversal of 90075083139218 is 81293138057009.

It can be written as a sum of positive squares in 4 ways, for example, as 87731266051009 + 2343817088209 = 9366497^2 + 1530953^2 .

It is a super-2 number, since 2×90075083139218² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2278977383 + ... + 2279016906.

Almost surely, 2^{90075083139218} is an apocalyptic number.

90075083139218 is a deficient number, since it is larger than the sum of its proper divisors (48907278751462).

90075083139218 is a wasteful number, since it uses less digits than its factorization.

90075083139218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4557994573.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 90075083139218 in words is "ninety trillion, seventy-five billion, eighty-three million, one hundred thirty-nine thousand, two hundred eighteen".