1347861837431 has 2 divisors, whose sum is σ = 1347861837432. Its totient is φ = 1347861837430.

The previous prime is 1347861837391. The next prime is 1347861837437. The reversal of 1347861837431 is 1347381687431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1347861837431 - 2⁶ = 1347861837367 is a prime.

It is a super-2 number, since 2×1347861837431² (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 (1347861837437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673930918715 + 673930918716.

It is an arithmetic number, because the mean of its divisors is an integer number (673930918716).

Almost surely, 2^{1347861837431} is an apocalyptic number.

1347861837431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1347861837431 is an equidigital number, since it uses as much as digits as its factorization.

1347861837431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8128512, while the sum is 56.

The spelling of 1347861837431 in words is "one trillion, three hundred forty-seven billion, eight hundred sixty-one million, eight hundred thirty-seven thousand, four hundred thirty-one".