1357706666447 has 2 divisors, whose sum is σ = 1357706666448. Its totient is φ = 1357706666446.

The previous prime is 1357706666441. The next prime is 1357706666473. The reversal of 1357706666447 is 7446666077531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1357706666447 - 2¹⁰ = 1357706665423 is a prime.

It is a super-2 number, since 2×1357706666447² (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 1357706666447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1357706666441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678853333223 + 678853333224.

It is an arithmetic number, because the mean of its divisors is an integer number (678853333224).

Almost surely, 2^{1357706666447} is an apocalyptic number.

1357706666447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1357706666447 is an equidigital number, since it uses as much as digits as its factorization.

1357706666447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 106686720, while the sum is 62.

The spelling of 1357706666447 in words is "one trillion, three hundred fifty-seven billion, seven hundred six million, six hundred sixty-six thousand, four hundred forty-seven".