137666389039 has 2 divisors, whose sum is σ = 137666389040. Its totient is φ = 137666389038.

The previous prime is 137666389013. The next prime is 137666389051. The reversal of 137666389039 is 930983666731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137666389039 - 2¹³ = 137666380847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137666389139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68833194519 + 68833194520.

It is an arithmetic number, because the mean of its divisors is an integer number (68833194520).

Almost surely, 2^137666389039 is an apocalyptic number.

137666389039 is a deficient number, since it is larger than the sum of its proper divisors (1).

137666389039 is an equidigital number, since it uses as much as digits as its factorization.

137666389039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26453952, while the sum is 61.

The spelling of 137666389039 in words is "one hundred thirty-seven billion, six hundred sixty-six million, three hundred eighty-nine thousand, thirty-nine".