13456421544013 has 16 divisors (see below), whose sum is σ = 16198833433600. Its totient is φ = 11162008645200.

The previous prime is 13456421544011. The next prime is 13456421544019. The reversal of 13456421544013 is 31044512465431.

It is not a de Polignac number, because 13456421544013 - 2¹ = 13456421544011 is a prime.

It is a super-2 number, since 2×13456421544013² (a number of 27 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 (13456421544011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 632756298 + ... + 632777563.

It is an arithmetic number, because the mean of its divisors is an integer number (1012427089600).

Almost surely, 2^{13456421544013} is an apocalyptic number.

It is an amenable number.

13456421544013 is a deficient number, since it is larger than the sum of its proper divisors (2742411889587).

13456421544013 is an equidigital number, since it uses as much as digits as its factorization.

13456421544013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265533913 (or 1265533899 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 13456421544013 in words is "thirteen trillion, four hundred fifty-six billion, four hundred twenty-one million, five hundred forty-four thousand, thirteen".