90928819193 has 8 divisors (see below), whose sum is σ = 92503570560. Its totient is φ = 89355187440.

The previous prime is 90928819187. The next prime is 90928819237. The reversal of 90928819193 is 39191882909.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90928819193 - 2²⁰ = 90927770617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90928819133) 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 7 ways as a sum of consecutive naturals, for example, 115238 + ... + 441743.

It is an arithmetic number, because the mean of its divisors is an integer number (11562946320).

Almost surely, 2^90928819193 is an apocalyptic number.

It is an amenable number.

90928819193 is a deficient number, since it is larger than the sum of its proper divisors (1574751367).

90928819193 is a wasteful number, since it uses less digits than its factorization.

90928819193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559807.

The product of its (nonzero) digits is 2519424, while the sum is 59.

The spelling of 90928819193 in words is "ninety billion, nine hundred twenty-eight million, eight hundred nineteen thousand, one hundred ninety-three".