1345251312399 has 16 divisors (see below), whose sum is σ = 1820722238720. Its totient is φ = 883311454080.

The previous prime is 1345251312367. The next prime is 1345251312451. The reversal of 1345251312399 is 9932131525431.

It is not a de Polignac number, because 1345251312399 - 2⁵ = 1345251312367 is a prime.

It is a super-2 number, since 2×1345251312399² (a number of 25 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 (1345251312599) 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, 786342 + ... + 1819020.

It is an arithmetic number, because the mean of its divisors is an integer number (113795139920).

Almost surely, 2^{1345251312399} is an apocalyptic number.

1345251312399 is a deficient number, since it is larger than the sum of its proper divisors (475470926321).

1345251312399 is a wasteful number, since it uses less digits than its factorization.

1345251312399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039230.

The product of its digits is 874800, while the sum is 48.

The spelling of 1345251312399 in words is "one trillion, three hundred forty-five billion, two hundred fifty-one million, three hundred twelve thousand, three hundred ninety-nine".