90259491596838 has 16 divisors (see below), whose sum is σ = 180547282217280. Its totient is φ = 30081780695016.

The previous prime is 90259491596779. The next prime is 90259491596843. The reversal of 90259491596838 is 83869519495209.

90259491596838 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1179084520 + ... + 1179161067.

It is an arithmetic number, because the mean of its divisors is an integer number (11284205138580).

Almost surely, 2^{90259491596838} is an apocalyptic number.

90259491596838 is an abundant number, since it is smaller than the sum of its proper divisors (90287790620442).

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

90259491596838 is a wasteful number, since it uses less digits than its factorization.

90259491596838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358251971.

The product of its (nonzero) digits is 1511654400, while the sum is 78.

The spelling of 90259491596838 in words is "ninety trillion, two hundred fifty-nine billion, four hundred ninety-one million, five hundred ninety-six thousand, eight hundred thirty-eight".