1394139192847 has 2 divisors, whose sum is σ = 1394139192848. Its totient is φ = 1394139192846.

The previous prime is 1394139192841. The next prime is 1394139192863. The reversal of 1394139192847 is 7482919314931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1394139192847 - 2³ = 1394139192839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1394139192841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697069596423 + 697069596424.

It is an arithmetic number, because the mean of its divisors is an integer number (697069596424).

Almost surely, 2^{1394139192847} is an apocalyptic number.

1394139192847 is a deficient number, since it is larger than the sum of its proper divisors (1).

1394139192847 is an equidigital number, since it uses as much as digits as its factorization.

1394139192847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11757312, while the sum is 61.

The spelling of 1394139192847 in words is "one trillion, three hundred ninety-four billion, one hundred thirty-nine million, one hundred ninety-two thousand, eight hundred forty-seven".