90507399511 has 2 divisors, whose sum is σ = 90507399512. Its totient is φ = 90507399510.

The previous prime is 90507399491. The next prime is 90507399553. The reversal of 90507399511 is 11599370509.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90507399511 - 2²⁷ = 90373181783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90507399571) 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, 45253699755 + 45253699756.

It is an arithmetic number, because the mean of its divisors is an integer number (45253699756).

Almost surely, 2^90507399511 is an apocalyptic number.

90507399511 is a deficient number, since it is larger than the sum of its proper divisors (1).

90507399511 is an equidigital number, since it uses as much as digits as its factorization.

90507399511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 382725, while the sum is 49.

The spelling of 90507399511 in words is "ninety billion, five hundred seven million, three hundred ninety-nine thousand, five hundred eleven".