84549117299 has 2 divisors, whose sum is σ = 84549117300. Its totient is φ = 84549117298.

The previous prime is 84549117221. The next prime is 84549117307. The reversal of 84549117299 is 99271194548.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84549117299 - 2²⁰ = 84548068723 is a prime.

It is a super-2 number, since 2×84549117299² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84549117199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42274558649 + 42274558650.

It is an arithmetic number, because the mean of its divisors is an integer number (42274558650).

Almost surely, 2^84549117299 is an apocalyptic number.

84549117299 is a deficient number, since it is larger than the sum of its proper divisors (1).

84549117299 is an equidigital number, since it uses as much as digits as its factorization.

84549117299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 59.

The spelling of 84549117299 in words is "eighty-four billion, five hundred forty-nine million, one hundred seventeen thousand, two hundred ninety-nine".