99994143569 has 2 divisors, whose sum is σ = 99994143570. Its totient is φ = 99994143568.

The previous prime is 99994143553. The next prime is 99994143583. The reversal of 99994143569 is 96534149999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99816187969 + 177955600 = 315937^2 + 13340^2 .

It is a cyclic number.

It is not a de Polignac number, because 99994143569 - 2⁴ = 99994143553 is a prime.

It is a super-2 number, since 2×99994143569² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99994143499 and 99994143508.

It is not a weakly prime, because it can be changed into another prime (99994143539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49997071784 + 49997071785.

It is an arithmetic number, because the mean of its divisors is an integer number (49997071785).

Almost surely, 2^99994143569 is an apocalyptic number.

It is an amenable number.

99994143569 is a deficient number, since it is larger than the sum of its proper divisors (1).

99994143569 is an equidigital number, since it uses as much as digits as its factorization.

99994143569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 85030560, while the sum is 68.

The spelling of 99994143569 in words is "ninety-nine billion, nine hundred ninety-four million, one hundred forty-three thousand, five hundred sixty-nine".