90988934043 has 16 divisors (see below), whose sum is σ = 139229936640. Its totient is φ = 51776126976.

The previous prime is 90988934017. The next prime is 90988934077. The reversal of 90988934043 is 34043988909.

It is not a de Polignac number, because 90988934043 - 2¹⁴ = 90988917659 is a prime.

It is a super-2 number, since 2×90988934043² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90988934243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9059430 + ... + 9069467.

It is an arithmetic number, because the mean of its divisors is an integer number (8701871040).

Almost surely, 2^90988934043 is an apocalyptic number.

90988934043 is a deficient number, since it is larger than the sum of its proper divisors (48241002597).

90988934043 is a wasteful number, since it uses less digits than its factorization.

90988934043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18129146.

The product of its (nonzero) digits is 6718464, while the sum is 57.

The spelling of 90988934043 in words is "ninety billion, nine hundred eighty-eight million, nine hundred thirty-four thousand, forty-three".