90945411269 has 2 divisors, whose sum is σ = 90945411270. Its totient is φ = 90945411268.

The previous prime is 90945411257. The next prime is 90945411281. The reversal of 90945411269 is 96211454909.

It is a balanced prime because it is at equal distance from previous prime (90945411257) and next prime (90945411281).

It can be written as a sum of positive squares in only one way, i.e., 76911928900 + 14033482369 = 277330^2 + 118463^2 .

It is a cyclic number.

It is not a de Polignac number, because 90945411269 - 2⁴ = 90945411253 is a prime.

It is a super-2 number, since 2×90945411269² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90945411289) 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, 45472705634 + 45472705635.

It is an arithmetic number, because the mean of its divisors is an integer number (45472705635).

Almost surely, 2^90945411269 is an apocalyptic number.

It is an amenable number.

90945411269 is a deficient number, since it is larger than the sum of its proper divisors (1).

90945411269 is an equidigital number, since it uses as much as digits as its factorization.

90945411269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 90945411269 in words is "ninety billion, nine hundred forty-five million, four hundred eleven thousand, two hundred sixty-nine".