90932819539 has 4 divisors (see below), whose sum is σ = 90950348880. Its totient is φ = 90915290200.

The previous prime is 90932819533. The next prime is 90932819561. The reversal of 90932819539 is 93591823909.

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 90932819539 - 2⁹ = 90932819027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90932819533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8756887 + ... + 8767264.

It is an arithmetic number, because the mean of its divisors is an integer number (22737587220).

Almost surely, 2^90932819539 is an apocalyptic number.

90932819539 is a deficient number, since it is larger than the sum of its proper divisors (17529341).

90932819539 is a wasteful number, since it uses less digits than its factorization.

90932819539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17529340.

The product of its (nonzero) digits is 4723920, while the sum is 58.

The spelling of 90932819539 in words is "ninety billion, nine hundred thirty-two million, eight hundred nineteen thousand, five hundred thirty-nine".