90538804839 has 24 divisors (see below), whose sum is σ = 140770971120. Its totient is φ = 51609930624.

The previous prime is 90538804831. The next prime is 90538804891. The reversal of 90538804839 is 93840883509.

It is not a de Polignac number, because 90538804839 - 2³ = 90538804831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90538804831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 692824 + ... + 813069.

It is an arithmetic number, because the mean of its divisors is an integer number (5865457130).

Almost surely, 2^90538804839 is an apocalyptic number.

90538804839 is a deficient number, since it is larger than the sum of its proper divisors (50232166281).

90538804839 is a wasteful number, since it uses less digits than its factorization.

90538804839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506319 (or 1506312 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 57.

The spelling of 90538804839 in words is "ninety billion, five hundred thirty-eight million, eight hundred four thousand, eight hundred thirty-nine".