90075083139249 has 32 divisors (see below), whose sum is σ = 130205715403008. Its totient is φ = 55059251040000.

The previous prime is 90075083139143. The next prime is 90075083139257. The reversal of 90075083139249 is 94293138057009.

It is not a de Polignac number, because 90075083139249 - 2¹² = 90075083135153 is a prime.

It is a super-2 number, since 2×90075083139249² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90075083139192 and 90075083139201.

It is not an unprimeable number, because it can be changed into a prime (90075083159249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72531559 + ... + 73762979.

It is an arithmetic number, because the mean of its divisors is an integer number (4068928606344).

Almost surely, 2^{90075083139249} is an apocalyptic number.

It is an amenable number.

90075083139249 is a deficient number, since it is larger than the sum of its proper divisors (40130632263759).

90075083139249 is a wasteful number, since it uses less digits than its factorization.

90075083139249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244009.

The product of its (nonzero) digits is 14696640, while the sum is 60.

The spelling of 90075083139249 in words is "ninety trillion, seventy-five billion, eighty-three million, one hundred thirty-nine thousand, two hundred forty-nine".