90839064844 has 24 divisors (see below), whose sum is σ = 175011051600. Its totient is φ = 40911670080.

The previous prime is 90839064839. The next prime is 90839064871. The reversal of 90839064844 is 44846093809.

It is a happy 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, 9465499 + ... + 9475090.

It is an arithmetic number, because the mean of its divisors is an integer number (7292127150).

Almost surely, 2^90839064844 is an apocalyptic number.

It is an amenable number.

90839064844 is a deficient number, since it is larger than the sum of its proper divisors (84171986756).

90839064844 is a wasteful number, since it uses less digits than its factorization.

90839064844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18940713 (or 18940711 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 55.

The spelling of 90839064844 in words is "ninety billion, eight hundred thirty-nine million, sixty-four thousand, eight hundred forty-four".