13645612043 has 8 divisors (see below), whose sum is σ = 15595692288. Its totient is φ = 11695708584.

The previous prime is 13645612031. The next prime is 13645612111. The reversal of 13645612043 is 34021654631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13645612043 - 2⁶ = 13645611979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13645611994 and 13645612012.

It is not an unprimeable number, because it can be changed into a prime (13645612843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272930 + ... + 319032.

It is an arithmetic number, because the mean of its divisors is an integer number (1949461536).

Almost surely, 2^13645612043 is an apocalyptic number.

13645612043 is a deficient number, since it is larger than the sum of its proper divisors (1950080245).

13645612043 is an equidigital number, since it uses as much as digits as its factorization.

13645612043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88393.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 13645612043 in words is "thirteen billion, six hundred forty-five million, six hundred twelve thousand, forty-three".