1397260575479 has 2 divisors, whose sum is σ = 1397260575480. Its totient is φ = 1397260575478.

The previous prime is 1397260575467. The next prime is 1397260575533. The reversal of 1397260575479 is 9745750627931.

It is a weak prime.

It is an emirp because it is prime and its reverse (9745750627931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1397260575479 - 2²⁸ = 1396992140023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1397260575409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698630287739 + 698630287740.

It is an arithmetic number, because the mean of its divisors is an integer number (698630287740).

Almost surely, 2^{1397260575479} is an apocalyptic number.

1397260575479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1397260575479 is an equidigital number, since it uses as much as digits as its factorization.

1397260575479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100018800, while the sum is 65.

The spelling of 1397260575479 in words is "one trillion, three hundred ninety-seven billion, two hundred sixty million, five hundred seventy-five thousand, four hundred seventy-nine".