13451857899 has 16 divisors (see below), whose sum is σ = 19390068480. Its totient is φ = 8266289760.

The previous prime is 13451857897. The next prime is 13451857997. The reversal of 13451857899 is 99875815431.

It is not a de Polignac number, because 13451857899 - 2¹ = 13451857897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13451857897) 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 15 ways as a sum of consecutive naturals, for example, 3187047 + ... + 3191264.

It is an arithmetic number, because the mean of its divisors is an integer number (1211879280).

Almost surely, 2^13451857899 is an apocalyptic number.

13451857899 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

13451857899 is a deficient number, since it is larger than the sum of its proper divisors (5938210581).

13451857899 is a wasteful number, since it uses less digits than its factorization.

13451857899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378370.

The product of its digits is 10886400, while the sum is 60.

The spelling of 13451857899 in words is "thirteen billion, four hundred fifty-one million, eight hundred fifty-seven thousand, eight hundred ninety-nine".