90767513539 has 2 divisors, whose sum is σ = 90767513540. Its totient is φ = 90767513538.

The previous prime is 90767513503. The next prime is 90767513563. The reversal of 90767513539 is 93531576709.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90767513539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90767513539.

It is not a weakly prime, because it can be changed into another prime (90767513339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45383756769 + 45383756770.

It is an arithmetic number, because the mean of its divisors is an integer number (45383756770).

Almost surely, 2^90767513539 is an apocalyptic number.

90767513539 is a deficient number, since it is larger than the sum of its proper divisors (1).

90767513539 is an equidigital number, since it uses as much as digits as its factorization.

90767513539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5358150, while the sum is 55.

The spelling of 90767513539 in words is "ninety billion, seven hundred sixty-seven million, five hundred thirteen thousand, five hundred thirty-nine".