90885198967 has 2 divisors, whose sum is σ = 90885198968. Its totient is φ = 90885198966.

The previous prime is 90885198923. The next prime is 90885199001. The reversal of 90885198967 is 76989158809.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90885198967 - 2³⁵ = 56525460599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90885198896 and 90885198905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90885193967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45442599483 + 45442599484.

It is an arithmetic number, because the mean of its divisors is an integer number (45442599484).

Almost surely, 2^90885198967 is an apocalyptic number.

90885198967 is a deficient number, since it is larger than the sum of its proper divisors (1).

90885198967 is an equidigital number, since it uses as much as digits as its factorization.

90885198967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78382080, while the sum is 70.

The spelling of 90885198967 in words is "ninety billion, eight hundred eighty-five million, one hundred ninety-eight thousand, nine hundred sixty-seven".