13435388899 has 4 divisors (see below), whose sum is σ = 13442098536. Its totient is φ = 13428679264.

The previous prime is 13435388891. The next prime is 13435388929. The reversal of 13435388899 is 99888353431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99888353431 = 54101 ⋅1846331.

It is a cyclic number.

It is not a de Polignac number, because 13435388899 - 2³ = 13435388891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13435388891) 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, 3351814 + ... + 3355819.

It is an arithmetic number, because the mean of its divisors is an integer number (3360524634).

Almost surely, 2^13435388899 is an apocalyptic number.

13435388899 is a deficient number, since it is larger than the sum of its proper divisors (6709637).

13435388899 is an equidigital number, since it uses as much as digits as its factorization.

13435388899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6709636.

The product of its digits is 22394880, while the sum is 61.

The spelling of 13435388899 in words is "thirteen billion, four hundred thirty-five million, three hundred eighty-eight thousand, eight hundred ninety-nine".