93985454191913 has 2 divisors, whose sum is σ = 93985454191914. Its totient is φ = 93985454191912.

The previous prime is 93985454191873. The next prime is 93985454191927. The reversal of 93985454191913 is 31919145458939.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75683596935424 + 18301857256489 = 8699632^2 + 4278067^2 .

It is a cyclic number.

It is not a de Polignac number, because 93985454191913 - 2³⁰ = 93984380450089 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (93985454131913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46992727095956 + 46992727095957.

It is an arithmetic number, because the mean of its divisors is an integer number (46992727095957).

Almost surely, 2^{93985454191913} is an apocalyptic number.

It is an amenable number.

93985454191913 is a deficient number, since it is larger than the sum of its proper divisors (1).

93985454191913 is an equidigital number, since it uses as much as digits as its factorization.

93985454191913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188956800, while the sum is 71.

The spelling of 93985454191913 in words is "ninety-three trillion, nine hundred eighty-five billion, four hundred fifty-four million, one hundred ninety-one thousand, nine hundred thirteen".