1390372957543 has 2 divisors, whose sum is σ = 1390372957544. Its totient is φ = 1390372957542.

The previous prime is 1390372957517. The next prime is 1390372957573. The reversal of 1390372957543 is 3457592730931.

It is a weak prime.

It is an emirp because it is prime and its reverse (3457592730931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1390372957543 - 2⁵ = 1390372957511 is a prime.

It is a super-2 number, since 2×1390372957543² (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 (1390372957573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695186478771 + 695186478772.

It is an arithmetic number, because the mean of its divisors is an integer number (695186478772).

Almost surely, 2^{1390372957543} is an apocalyptic number.

1390372957543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1390372957543 is an equidigital number, since it uses as much as digits as its factorization.

1390372957543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21432600, while the sum is 58.

The spelling of 1390372957543 in words is "one trillion, three hundred ninety billion, three hundred seventy-two million, nine hundred fifty-seven thousand, five hundred forty-three".