13995857819 has 4 divisors (see below), whose sum is σ = 14164482696. Its totient is φ = 13827232944.

The previous prime is 13995857809. The next prime is 13995857831. The reversal of 13995857819 is 91875859931.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13995857819 - 2²⁰ = 13994809243 is a prime.

It is a super-2 number, since 2×13995857819² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13995857809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84312314 + ... + 84312479.

It is an arithmetic number, because the mean of its divisors is an integer number (3541120674).

Almost surely, 2^13995857819 is an apocalyptic number.

13995857819 is a deficient number, since it is larger than the sum of its proper divisors (168624877).

13995857819 is an equidigital number, since it uses as much as digits as its factorization.

13995857819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168624876.

The product of its digits is 24494400, while the sum is 65.

The spelling of 13995857819 in words is "thirteen billion, nine hundred ninety-five million, eight hundred fifty-seven thousand, eight hundred nineteen".