137948593687 has 2 divisors, whose sum is σ = 137948593688. Its totient is φ = 137948593686.

The previous prime is 137948593649. The next prime is 137948593751. The reversal of 137948593687 is 786395849731.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137948593687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137948593487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68974296843 + 68974296844.

It is an arithmetic number, because the mean of its divisors is an integer number (68974296844).

Almost surely, 2^137948593687 is an apocalyptic number.

137948593687 is a deficient number, since it is larger than the sum of its proper divisors (1).

137948593687 is an equidigital number, since it uses as much as digits as its factorization.

137948593687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 274337280, while the sum is 70.

The spelling of 137948593687 in words is "one hundred thirty-seven billion, nine hundred forty-eight million, five hundred ninety-three thousand, six hundred eighty-seven".