13645625119 has 4 divisors (see below), whose sum is σ = 15595000144. Its totient is φ = 11696250096.

The previous prime is 13645625051. The next prime is 13645625131. The reversal of 13645625119 is 91152654631.

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

It is a cyclic number.

It is not a de Polignac number, because 13645625119 - 2²¹ = 13643527967 is a prime.

It is a super-2 number, since 2×13645625119² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13645625179) 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, 974687502 + ... + 974687515.

It is an arithmetic number, because the mean of its divisors is an integer number (3898750036).

Almost surely, 2^13645625119 is an apocalyptic number.

13645625119 is a deficient number, since it is larger than the sum of its proper divisors (1949375025).

13645625119 is an equidigital number, since it uses as much as digits as its factorization.

13645625119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949375024.

The product of its digits is 194400, while the sum is 43.

The spelling of 13645625119 in words is "thirteen billion, six hundred forty-five million, six hundred twenty-five thousand, one hundred nineteen".