13815804145 has 16 divisors (see below), whose sum is σ = 19477386432. Its totient is φ = 9274944960.

The previous prime is 13815804127. The next prime is 13815804179. The reversal of 13815804145 is 54140851831.

It is not a de Polignac number, because 13815804145 - 2²⁵ = 13782249713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13815804098 and 13815804107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9660687 + ... + 9662116.

It is an arithmetic number, because the mean of its divisors is an integer number (1217336652).

Almost surely, 2^13815804145 is an apocalyptic number.

It is an amenable number.

13815804145 is a deficient number, since it is larger than the sum of its proper divisors (5661582287).

13815804145 is a wasteful number, since it uses less digits than its factorization.

13815804145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19322832.

The product of its (nonzero) digits is 76800, while the sum is 40.

The spelling of 13815804145 in words is "thirteen billion, eight hundred fifteen million, eight hundred four thousand, one hundred forty-five".