90426502539 has 12 divisors (see below), whose sum is σ = 130639797600. Its totient is φ = 60273378864.

The previous prime is 90426502531. The next prime is 90426502547. The reversal of 90426502539 is 93520562409.

90426502539 is a `hidden beast` number, since 90 + 4 + 2 + 6 + 502 + 53 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (90426502531) and next prime (90426502547).

It is not a de Polignac number, because 90426502539 - 2³ = 90426502531 is a prime.

It is a super-2 number, since 2×90426502539² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90426502494 and 90426502503.

It is not an unprimeable number, because it can be changed into a prime (90426502531) 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, 860584 + ... + 959925.

It is an arithmetic number, because the mean of its divisors is an integer number (10886649800).

Almost surely, 2^90426502539 is an apocalyptic number.

90426502539 is a deficient number, since it is larger than the sum of its proper divisors (40213295061).

90426502539 is a wasteful number, since it uses less digits than its factorization.

90426502539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826034 (or 1826031 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 90426502539 in words is "ninety billion, four hundred twenty-six million, five hundred two thousand, five hundred thirty-nine".