90327868949 has 2 divisors, whose sum is σ = 90327868950. Its totient is φ = 90327868948.

The previous prime is 90327868933. The next prime is 90327868963. The reversal of 90327868949 is 94986872309.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88436053924 + 1891815025 = 297382^2 + 43495^2 .

It is a cyclic number.

It is not a de Polignac number, because 90327868949 - 2⁴ = 90327868933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90327868909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45163934474 + 45163934475.

It is an arithmetic number, because the mean of its divisors is an integer number (45163934475).

Almost surely, 2^90327868949 is an apocalyptic number.

It is an amenable number.

90327868949 is a deficient number, since it is larger than the sum of its proper divisors (1).

90327868949 is an equidigital number, since it uses as much as digits as its factorization.

90327868949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47029248, while the sum is 65.

The spelling of 90327868949 in words is "ninety billion, three hundred twenty-seven million, eight hundred sixty-eight thousand, nine hundred forty-nine".