90868233744 has 60 divisors (see below), whose sum is σ = 260507422812. Its totient is φ = 29550643200.

The previous prime is 90868233739. The next prime is 90868233749. The reversal of 90868233744 is 44733286809.

It is an interprime number because it is at equal distance from previous prime (90868233739) and next prime (90868233749).

It can be written as a sum of positive squares in 2 ways, for example, as 51302250000 + 39565983744 = 226500^2 + 198912^2 .

It is not an unprimeable number, because it can be changed into a prime (90868233749) 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, 7689577 + ... + 7701384.

Almost surely, 2^90868233744 is an apocalyptic number.

It is an amenable number.

90868233744 is an abundant number, since it is smaller than the sum of its proper divisors (169639189068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90868233744 is a wasteful number, since it uses less digits than its factorization.

90868233744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15391016 (or 15391007 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 90868233744 in words is "ninety billion, eight hundred sixty-eight million, two hundred thirty-three thousand, seven hundred forty-four".