1344621651431 has 2 divisors, whose sum is σ = 1344621651432. Its totient is φ = 1344621651430.

The previous prime is 1344621651397. The next prime is 1344621651487. The reversal of 1344621651431 is 1341561264431.

It is a weak prime.

It is an emirp because it is prime and its reverse (1341561264431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344621651431 is a prime.

It is a super-2 number, since 2×1344621651431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1344621651631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672310825715 + 672310825716.

It is an arithmetic number, because the mean of its divisors is an integer number (672310825716).

Almost surely, 2^{1344621651431} is an apocalyptic number.

1344621651431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344621651431 is an equidigital number, since it uses as much as digits as its factorization.

1344621651431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 41.

The spelling of 1344621651431 in words is "one trillion, three hundred forty-four billion, six hundred twenty-one million, six hundred fifty-one thousand, four hundred thirty-one".