139816744687 has 2 divisors, whose sum is σ = 139816744688. Its totient is φ = 139816744686.

The previous prime is 139816744619. The next prime is 139816744709. The reversal of 139816744687 is 786447618931.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139816744687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139816744607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69908372343 + 69908372344.

It is an arithmetic number, because the mean of its divisors is an integer number (69908372344).

Almost surely, 2^139816744687 is an apocalyptic number.

139816744687 is a deficient number, since it is larger than the sum of its proper divisors (1).

139816744687 is an equidigital number, since it uses as much as digits as its factorization.

139816744687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48771072, while the sum is 64.

The spelling of 139816744687 in words is "one hundred thirty-nine billion, eight hundred sixteen million, seven hundred forty-four thousand, six hundred eighty-seven".