1399533734399 has 2 divisors, whose sum is σ = 1399533734400. Its totient is φ = 1399533734398.

The previous prime is 1399533734393. The next prime is 1399533734411. The reversal of 1399533734399 is 9934373359931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1399533734399 - 2¹² = 1399533730303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1399533734393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699766867199 + 699766867200.

It is an arithmetic number, because the mean of its divisors is an integer number (699766867200).

Almost surely, 2^{1399533734399} is an apocalyptic number.

1399533734399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1399533734399 is an equidigital number, since it uses as much as digits as its factorization.

1399533734399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 223205220, while the sum is 68.

The spelling of 1399533734399 in words is "one trillion, three hundred ninety-nine billion, five hundred thirty-three million, seven hundred thirty-four thousand, three hundred ninety-nine".