1375358247643 has 2 divisors, whose sum is σ = 1375358247644. Its totient is φ = 1375358247642.

The previous prime is 1375358247631. The next prime is 1375358247649. The reversal of 1375358247643 is 3467428535731.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1375358247643 is a prime.

It is a super-2 number, since 2×1375358247643² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1375358247649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687679123821 + 687679123822.

It is an arithmetic number, because the mean of its divisors is an integer number (687679123822).

Almost surely, 2^{1375358247643} is an apocalyptic number.

1375358247643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375358247643 is an equidigital number, since it uses as much as digits as its factorization.

1375358247643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50803200, while the sum is 58.

It can be divided in two parts, 13753582 and 47643, that added together give a square (13801225 = 3715²).

The spelling of 1375358247643 in words is "one trillion, three hundred seventy-five billion, three hundred fifty-eight million, two hundred forty-seven thousand, six hundred forty-three".