90581796143 has 4 divisors (see below), whose sum is σ = 90582425040. Its totient is φ = 90581167248.

The previous prime is 90581796131. The next prime is 90581796181. The reversal of 90581796143 is 34169718509.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 90581796143 - 2⁴ = 90581796127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90581796743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20603 + ... + 426131.

It is an arithmetic number, because the mean of its divisors is an integer number (22645606260).

Almost surely, 2^90581796143 is an apocalyptic number.

90581796143 is a deficient number, since it is larger than the sum of its proper divisors (628897).

90581796143 is a wasteful number, since it uses less digits than its factorization.

90581796143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628896.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 90581796143 in words is "ninety billion, five hundred eighty-one million, seven hundred ninety-six thousand, one hundred forty-three".