6244657144513 has 4 divisors (see below), whose sum is σ = 6314821831620. Its totient is φ = 6174492457408.

The previous prime is 6244657144493. The next prime is 6244657144529. The reversal of 6244657144513 is 3154417564426.

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 3491340831169 + 2753316313344 = 1868513^2 + 1659312^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6244657144513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6244657144613) 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, 35082343420 + ... + 35082343597.

It is an arithmetic number, because the mean of its divisors is an integer number (1578705457905).

Almost surely, 2^{6244657144513} is an apocalyptic number.

It is an amenable number.

6244657144513 is a deficient number, since it is larger than the sum of its proper divisors (70164687107).

6244657144513 is an equidigital number, since it uses as much as digits as its factorization.

6244657144513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70164687106.

The product of its digits is 9676800, while the sum is 52.

The spelling of 6244657144513 in words is "six trillion, two hundred forty-four billion, six hundred fifty-seven million, one hundred forty-four thousand, five hundred thirteen".