14899117897 has 4 divisors (see below), whose sum is σ = 14905441476. Its totient is φ = 14892794320.

The previous prime is 14899117817. The next prime is 14899117907. The reversal of 14899117897 is 79871199841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79871199841 = 17 ⋅4698305873.

It can be written as a sum of positive squares in 2 ways, for example, as 1887381136 + 13011736761 = 43444^2 + 114069^2 .

It is a cyclic number.

It is not a de Polignac number, because 14899117897 - 2¹⁹ = 14898593609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14899117817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3158254 + ... + 3162967.

It is an arithmetic number, because the mean of its divisors is an integer number (3726360369).

Almost surely, 2^14899117897 is an apocalyptic number.

It is an amenable number.

14899117897 is a deficient number, since it is larger than the sum of its proper divisors (6323579).

14899117897 is an equidigital number, since it uses as much as digits as its factorization.

14899117897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6323578.

The product of its digits is 9144576, while the sum is 64.

The spelling of 14899117897 in words is "fourteen billion, eight hundred ninety-nine million, one hundred seventeen thousand, eight hundred ninety-seven".