90885478363 has 2 divisors, whose sum is σ = 90885478364. Its totient is φ = 90885478362.

The previous prime is 90885478339. The next prime is 90885478373. The reversal of 90885478363 is 36387458809.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90885478363 - 2²⁵ = 90851923931 is a prime.

It is not a weakly prime, because it can be changed into another prime (90885478373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45442739181 + 45442739182.

It is an arithmetic number, because the mean of its divisors is an integer number (45442739182).

Almost surely, 2^90885478363 is an apocalyptic number.

90885478363 is a deficient number, since it is larger than the sum of its proper divisors (1).

90885478363 is an equidigital number, since it uses as much as digits as its factorization.

90885478363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34836480, while the sum is 61.

The spelling of 90885478363 in words is "ninety billion, eight hundred eighty-five million, four hundred seventy-eight thousand, three hundred sixty-three".