13646853049 has 4 divisors (see below), whose sum is σ = 13715430400. Its totient is φ = 13578275700.

The previous prime is 13646853023. The next prime is 13646853053. The reversal of 13646853049 is 94035864631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94035864631 = 218987 ⋅429413.

It is a cyclic number.

It is not a de Polignac number, because 13646853049 - 2¹³ = 13646844857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13646852993 and 13646853011.

It is not an unprimeable number, because it can be changed into a prime (13646859049) 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, 34288377 + ... + 34288774.

It is an arithmetic number, because the mean of its divisors is an integer number (3428857600).

Almost surely, 2^13646853049 is an apocalyptic number.

It is an amenable number.

13646853049 is a deficient number, since it is larger than the sum of its proper divisors (68577351).

13646853049 is an equidigital number, since it uses as much as digits as its factorization.

13646853049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68577350.

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 13646853049 in words is "thirteen billion, six hundred forty-six million, eight hundred fifty-three thousand, forty-nine".