1319964105547 has 2 divisors, whose sum is σ = 1319964105548. Its totient is φ = 1319964105546.

The previous prime is 1319964105503. The next prime is 1319964105619. The reversal of 1319964105547 is 7455014699131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1319964105547 is a prime.

It is not a weakly prime, because it can be changed into another prime (1319964135547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659982052773 + 659982052774.

It is an arithmetic number, because the mean of its divisors is an integer number (659982052774).

Almost surely, 2^{1319964105547} is an apocalyptic number.

1319964105547 is a deficient number, since it is larger than the sum of its proper divisors (1).

1319964105547 is an equidigital number, since it uses as much as digits as its factorization.

1319964105547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4082400, while the sum is 55.

The spelling of 1319964105547 in words is "one trillion, three hundred nineteen billion, nine hundred sixty-four million, one hundred five thousand, five hundred forty-seven".