13256312343945 has 16 divisors (see below), whose sum is σ = 23138290636992. Its totient is φ = 6427302954560.

The previous prime is 13256312343941. The next prime is 13256312343971. The reversal of 13256312343945 is 54934321365231.

13256312343945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13256312343945 - 2² = 13256312343941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13256312343941) 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, 40170643302 + ... + 40170643631.

It is an arithmetic number, because the mean of its divisors is an integer number (1446143164812).

Almost surely, 2^{13256312343945} is an apocalyptic number.

13256312343945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13256312343945 is a deficient number, since it is larger than the sum of its proper divisors (9881978293047).

13256312343945 is a wasteful number, since it uses less digits than its factorization.

13256312343945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80341286952.

The product of its digits is 6998400, while the sum is 51.

The spelling of 13256312343945 in words is "thirteen trillion, two hundred fifty-six billion, three hundred twelve million, three hundred forty-three thousand, nine hundred forty-five".