90354245085239 has 2 divisors, whose sum is σ = 90354245085240. Its totient is φ = 90354245085238.

The previous prime is 90354245085119. The next prime is 90354245085287. The reversal of 90354245085239 is 93258054245309.

It is a strong prime.

It is an emirp because it is prime and its reverse (93258054245309) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90354245085239 - 2²⁰ = 90354244036663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90354245085439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45177122542619 + 45177122542620.

It is an arithmetic number, because the mean of its divisors is an integer number (45177122542620).

Almost surely, 2^{90354245085239} is an apocalyptic number.

90354245085239 is a deficient number, since it is larger than the sum of its proper divisors (1).

90354245085239 is an equidigital number, since it uses as much as digits as its factorization.

90354245085239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656000, while the sum is 59.

The spelling of 90354245085239 in words is "ninety trillion, three hundred fifty-four billion, two hundred forty-five million, eighty-five thousand, two hundred thirty-nine".