90582037993 has 4 divisors (see below), whose sum is σ = 93030201220. Its totient is φ = 88133874768.

The previous prime is 90582037963. The next prime is 90582038011. The reversal of 90582037993 is 39973028509.

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

It can be written as a sum of positive squares in 2 ways, for example, as 57716699049 + 32865338944 = 240243^2 + 181288^2 .

It is a cyclic number.

It is not a de Polignac number, because 90582037993 - 2²⁹ = 90045167081 is a prime.

It is the 300969-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90582037963) by changing a digit.

It is a nontrivial repunit in base 300968.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1224081558 + ... + 1224081631.

It is an arithmetic number, because the mean of its divisors is an integer number (23257550305).

Almost surely, 2^90582037993 is an apocalyptic number.

It is an amenable number.

90582037993 is a deficient number, since it is larger than the sum of its proper divisors (2448163227).

90582037993 is a wasteful number, since it uses less digits than its factorization.

90582037993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448163226.

The product of its (nonzero) digits is 3674160, while the sum is 55.

The spelling of 90582037993 in words is "ninety billion, five hundred eighty-two million, thirty-seven thousand, nine hundred ninety-three".