137683665807 has 4 divisors (see below), whose sum is σ = 183578221080. Its totient is φ = 91789110536.

The previous prime is 137683665803. The next prime is 137683665811. The reversal of 137683665807 is 708566386731.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (137683665803) and next prime (137683665811).

It is a cyclic number.

It is not a de Polignac number, because 137683665807 - 2² = 137683665803 is a prime.

It is a super-2 number, since 2×137683665807² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137683665803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22947277632 + ... + 22947277637.

It is an arithmetic number, because the mean of its divisors is an integer number (45894555270).

Almost surely, 2^137683665807 is an apocalyptic number.

137683665807 is a deficient number, since it is larger than the sum of its proper divisors (45894555273).

137683665807 is an equidigital number, since it uses as much as digits as its factorization.

137683665807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45894555272.

The product of its (nonzero) digits is 30481920, while the sum is 60.

The spelling of 137683665807 in words is "one hundred thirty-seven billion, six hundred eighty-three million, six hundred sixty-five thousand, eight hundred seven".