90492809339 has 2 divisors, whose sum is σ = 90492809340. Its totient is φ = 90492809338.

The previous prime is 90492809317. The next prime is 90492809357. The reversal of 90492809339 is 93390829409.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90492809339 - 2¹² = 90492805243 is a prime.

It is not a weakly prime, because it can be changed into another prime (90492809389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45246404669 + 45246404670.

It is an arithmetic number, because the mean of its divisors is an integer number (45246404670).

Almost surely, 2^90492809339 is an apocalyptic number.

90492809339 is a deficient number, since it is larger than the sum of its proper divisors (1).

90492809339 is an equidigital number, since it uses as much as digits as its factorization.

90492809339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3779136, while the sum is 56.

The spelling of 90492809339 in words is "ninety billion, four hundred ninety-two million, eight hundred nine thousand, three hundred thirty-nine".