1400344311329 has 4 divisors (see below), whose sum is σ = 1401768874176. Its totient is φ = 1398919748484.

The previous prime is 1400344311323. The next prime is 1400344311343. The reversal of 1400344311329 is 9231134430041.

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 a de Polignac number, because none of the positive numbers 2^k-1400344311329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400344311323) 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, 712279949 + ... + 712281914.

It is an arithmetic number, because the mean of its divisors is an integer number (350442218544).

Almost surely, 2^{1400344311329} is an apocalyptic number.

It is an amenable number.

1400344311329 is a deficient number, since it is larger than the sum of its proper divisors (1424562847).

1400344311329 is an equidigital number, since it uses as much as digits as its factorization.

1400344311329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424562846.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 1400344311329 in words is "one trillion, four hundred billion, three hundred forty-four million, three hundred eleven thousand, three hundred twenty-nine".