1387867364647 has 2 divisors, whose sum is σ = 1387867364648. Its totient is φ = 1387867364646.

The previous prime is 1387867364621. The next prime is 1387867364683. The reversal of 1387867364647 is 7464637687831.

It is a weak prime.

It is an emirp because it is prime and its reverse (7464637687831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1387867364647 - 2³⁵ = 1353507626279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1387867364617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693933682323 + 693933682324.

It is an arithmetic number, because the mean of its divisors is an integer number (693933682324).

Almost surely, 2^{1387867364647} is an apocalyptic number.

1387867364647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1387867364647 is an equidigital number, since it uses as much as digits as its factorization.

1387867364647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 682795008, while the sum is 70.

The spelling of 1387867364647 in words is "one trillion, three hundred eighty-seven billion, eight hundred sixty-seven million, three hundred sixty-four thousand, six hundred forty-seven".