137916766537 has 4 divisors (see below), whose sum is σ = 150454654416. Its totient is φ = 125378878660.

The previous prime is 137916766531. The next prime is 137916766571. The reversal of 137916766537 is 735667619731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 137916766537 - 2³ = 137916766529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137916766531) 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 in 3 ways as a sum of consecutive naturals, for example, 6268943923 + ... + 6268943944.

It is an arithmetic number, because the mean of its divisors is an integer number (37613663604).

Almost surely, 2^137916766537 is an apocalyptic number.

It is an amenable number.

137916766537 is a deficient number, since it is larger than the sum of its proper divisors (12537887879).

137916766537 is a wasteful number, since it uses less digits than its factorization.

137916766537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12537887878.

The product of its digits is 30005640, while the sum is 61.

The spelling of 137916766537 in words is "one hundred thirty-seven billion, nine hundred sixteen million, seven hundred sixty-six thousand, five hundred thirty-seven".