1365581257013 has 4 divisors (see below), whose sum is σ = 1424954355168. Its totient is φ = 1306208158860.

The previous prime is 1365581256997. The next prime is 1365581257031. The reversal of 1365581257013 is 3107521855631.

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.

It is a cyclic number.

It is not a de Polignac number, because 1365581257013 - 2⁴ = 1365581256997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1365581257093) 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, 29686549043 + ... + 29686549088.

It is an arithmetic number, because the mean of its divisors is an integer number (356238588792).

Almost surely, 2^{1365581257013} is an apocalyptic number.

It is an amenable number.

1365581257013 is a deficient number, since it is larger than the sum of its proper divisors (59373098155).

1365581257013 is an equidigital number, since it uses as much as digits as its factorization.

1365581257013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59373098154.

The product of its (nonzero) digits is 756000, while the sum is 47.

The spelling of 1365581257013 in words is "one trillion, three hundred sixty-five billion, five hundred eighty-one million, two hundred fifty-seven thousand, thirteen".