90091493803 has 4 divisors (see below), whose sum is σ = 90125075128. Its totient is φ = 90057912480.

The previous prime is 90091493801. The next prime is 90091493819. The reversal of 90091493803 is 30839419009.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90091493803 - 2¹ = 90091493801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90091493801) 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 3 ways as a sum of consecutive naturals, for example, 16786638 + ... + 16792003.

It is an arithmetic number, because the mean of its divisors is an integer number (22531268782).

Almost surely, 2^90091493803 is an apocalyptic number.

90091493803 is a deficient number, since it is larger than the sum of its proper divisors (33581325).

90091493803 is a wasteful number, since it uses less digits than its factorization.

90091493803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33581324.

The product of its (nonzero) digits is 209952, while the sum is 46.

The spelling of 90091493803 in words is "ninety billion, ninety-one million, four hundred ninety-three thousand, eight hundred three".