1081375457399 has 2 divisors, whose sum is σ = 1081375457400. Its totient is φ = 1081375457398.

The previous prime is 1081375457377. The next prime is 1081375457417. The reversal of 1081375457399 is 9937545731801.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1081375457399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1081375459399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540687728699 + 540687728700.

It is an arithmetic number, because the mean of its divisors is an integer number (540687728700).

Almost surely, 2^{1081375457399} is an apocalyptic number.

1081375457399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081375457399 is an equidigital number, since it uses as much as digits as its factorization.

1081375457399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28576800, while the sum is 62.

The spelling of 1081375457399 in words is "one trillion, eighty-one billion, three hundred seventy-five million, four hundred fifty-seven thousand, three hundred ninety-nine".