137766639139 has 2 divisors, whose sum is σ = 137766639140. Its totient is φ = 137766639138.

The previous prime is 137766639137. The next prime is 137766639151. The reversal of 137766639139 is 931936667731.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137766639139 - 2¹ = 137766639137 is a prime.

It is a super-2 number, since 2×137766639139² (a number of 23 digits) contains 22 as substring.

Together with 137766639137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (137766639137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68883319569 + 68883319570.

It is an arithmetic number, because the mean of its divisors is an integer number (68883319570).

Almost surely, 2^137766639139 is an apocalyptic number.

137766639139 is a deficient number, since it is larger than the sum of its proper divisors (1).

137766639139 is an equidigital number, since it uses as much as digits as its factorization.

137766639139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23147208, while the sum is 61.

The spelling of 137766639139 in words is "one hundred thirty-seven billion, seven hundred sixty-six million, six hundred thirty-nine thousand, one hundred thirty-nine".