90529078139 has 2 divisors, whose sum is σ = 90529078140. Its totient is φ = 90529078138.

The previous prime is 90529078093. The next prime is 90529078151. The reversal of 90529078139 is 93187092509.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90529078139 - 2¹⁶ = 90529012603 is a prime.

It is not a weakly prime, because it can be changed into another prime (90529008139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45264539069 + 45264539070.

It is an arithmetic number, because the mean of its divisors is an integer number (45264539070).

Almost surely, 2^90529078139 is an apocalyptic number.

90529078139 is a deficient number, since it is larger than the sum of its proper divisors (1).

90529078139 is an equidigital number, since it uses as much as digits as its factorization.

90529078139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The spelling of 90529078139 in words is "ninety billion, five hundred twenty-nine million, seventy-eight thousand, one hundred thirty-nine".