1264407612343 has 2 divisors, whose sum is σ = 1264407612344. Its totient is φ = 1264407612342.

The previous prime is 1264407612331. The next prime is 1264407612367. The reversal of 1264407612343 is 3432167044621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1264407612343 - 2²⁹ = 1263870741431 is a prime.

It is a super-2 number, since 2×1264407612343² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1264407612343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1264407612383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632203806171 + 632203806172.

It is an arithmetic number, because the mean of its divisors is an integer number (632203806172).

Almost surely, 2^{1264407612343} is an apocalyptic number.

1264407612343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264407612343 is an equidigital number, since it uses as much as digits as its factorization.

1264407612343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 43.

The spelling of 1264407612343 in words is "one trillion, two hundred sixty-four billion, four hundred seven million, six hundred twelve thousand, three hundred forty-three".