90430143508 has 24 divisors (see below), whose sum is σ = 159422558400. Its totient is φ = 44880969408.

The previous prime is 90430143467. The next prime is 90430143637. The reversal of 90430143508 is 80534103409.

It is a super-2 number, since 2×90430143508² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3522816 + ... + 3548392.

It is an arithmetic number, because the mean of its divisors is an integer number (6642606600).

Almost surely, 2^90430143508 is an apocalyptic number.

It is an amenable number.

90430143508 is a deficient number, since it is larger than the sum of its proper divisors (68992414892).

90430143508 is a wasteful number, since it uses less digits than its factorization.

90430143508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32079 (or 32077 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 90430143508 in words is "ninety billion, four hundred thirty million, one hundred forty-three thousand, five hundred eight".