13442861053 has 4 divisors (see below), whose sum is σ = 13806181660. Its totient is φ = 13079540448.

The previous prime is 13442861051. The next prime is 13442861059. The reversal of 13442861053 is 35016824431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5918686489 + 7524174564 = 76933^2 + 86742^2 .

It is a cyclic number.

It is not a de Polignac number, because 13442861053 - 2¹ = 13442861051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 363320569 = 13442861053 / (1 + 3 + 4 + 4 + 2 + 8 + 6 + 1 + 0 + 5 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13442861051) 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, 181660248 + ... + 181660321.

It is an arithmetic number, because the mean of its divisors is an integer number (3451545415).

Almost surely, 2^13442861053 is an apocalyptic number.

It is an amenable number.

13442861053 is a deficient number, since it is larger than the sum of its proper divisors (363320607).

13442861053 is an equidigital number, since it uses as much as digits as its factorization.

13442861053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363320606.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 13442861053 in words is "thirteen billion, four hundred forty-two million, eight hundred sixty-one thousand, fifty-three".