99381084017 has 2 divisors, whose sum is σ = 99381084018. Its totient is φ = 99381084016.

The previous prime is 99381083869. The next prime is 99381084041. The reversal of 99381084017 is 71048018399.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99375627121 + 5456896 = 315239^2 + 2336^2 .

It is a cyclic number.

It is not a de Polignac number, because 99381084017 - 2²⁰ = 99380035441 is a prime.

It is not a weakly prime, because it can be changed into another prime (99381084217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49690542008 + 49690542009.

It is an arithmetic number, because the mean of its divisors is an integer number (49690542009).

Almost surely, 2^99381084017 is an apocalyptic number.

It is an amenable number.

99381084017 is a deficient number, since it is larger than the sum of its proper divisors (1).

99381084017 is an equidigital number, since it uses as much as digits as its factorization.

99381084017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 50.

The spelling of 99381084017 in words is "ninety-nine billion, three hundred eighty-one million, eighty-four thousand, seventeen".