90840955624 has 16 divisors (see below), whose sum is σ = 174481104420. Its totient is φ = 44312661120.

The previous prime is 90840955589. The next prime is 90840955627. The reversal of 90840955624 is 42655904809.

It can be written as a sum of positive squares in 2 ways, for example, as 87267068100 + 3573887524 = 295410^2 + 59782^2 .

It is not an unprimeable number, because it can be changed into a prime (90840955627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138476739 + ... + 138477394.

Almost surely, 2^90840955624 is an apocalyptic number.

It is an amenable number.

90840955624 is a deficient number, since it is larger than the sum of its proper divisors (83640148796).

90840955624 is a wasteful number, since it uses less digits than its factorization.

90840955624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276954180 (or 276954176 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 90840955624 in words is "ninety billion, eight hundred forty million, nine hundred fifty-five thousand, six hundred twenty-four".