90366884849 has 2 divisors, whose sum is σ = 90366884850. Its totient is φ = 90366884848.

The previous prime is 90366884837. The next prime is 90366884869. The reversal of 90366884849 is 94848866309.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89535600625 + 831284224 = 299225^2 + 28832^2 .

It is a cyclic number.

It is not a de Polignac number, because 90366884849 - 2²⁸ = 90098449393 is a prime.

It is not a weakly prime, because it can be changed into another prime (90366884869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45183442424 + 45183442425.

It is an arithmetic number, because the mean of its divisors is an integer number (45183442425).

Almost surely, 2^90366884849 is an apocalyptic number.

It is an amenable number.

90366884849 is a deficient number, since it is larger than the sum of its proper divisors (1).

90366884849 is an equidigital number, since it uses as much as digits as its factorization.

90366884849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71663616, while the sum is 65.

The spelling of 90366884849 in words is "ninety billion, three hundred sixty-six million, eight hundred eighty-four thousand, eight hundred forty-nine".