1340621462399 has 2 divisors, whose sum is σ = 1340621462400. Its totient is φ = 1340621462398.

The previous prime is 1340621462293. The next prime is 1340621462407. The reversal of 1340621462399 is 9932641260431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1340621462399 - 2⁸ = 1340621462143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340621467399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670310731199 + 670310731200.

It is an arithmetic number, because the mean of its divisors is an integer number (670310731200).

Almost surely, 2^{1340621462399} is an apocalyptic number.

1340621462399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340621462399 is an equidigital number, since it uses as much as digits as its factorization.

1340621462399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 1340621462399 in words is "one trillion, three hundred forty billion, six hundred twenty-one million, four hundred sixty-two thousand, three hundred ninety-nine".