137722508687 has 2 divisors, whose sum is σ = 137722508688. Its totient is φ = 137722508686.

The previous prime is 137722508683. The next prime is 137722508699. The reversal of 137722508687 is 786805227731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137722508687 - 2² = 137722508683 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137722508683) 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, 68861254343 + 68861254344.

It is an arithmetic number, because the mean of its divisors is an integer number (68861254344).

Almost surely, 2^137722508687 is an apocalyptic number.

137722508687 is a deficient number, since it is larger than the sum of its proper divisors (1).

137722508687 is an equidigital number, since it uses as much as digits as its factorization.

137722508687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7902720, while the sum is 56.

The spelling of 137722508687 in words is "one hundred thirty-seven billion, seven hundred twenty-two million, five hundred eight thousand, six hundred eighty-seven".