137840516781685 has 16 divisors (see below), whose sum is σ = 165684131876160. Its totient is φ = 110088756771840.

The previous prime is 137840516781601. The next prime is 137840516781761. The reversal of 137840516781685 is 586187615048731.

It is a happy number.

It is not a de Polignac number, because 137840516781685 - 2⁷ = 137840516781557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61293774 + ... + 63502816.

It is an arithmetic number, because the mean of its divisors is an integer number (10355258242260).

Almost surely, 2^{137840516781685} is an apocalyptic number.

It is an amenable number.

137840516781685 is a deficient number, since it is larger than the sum of its proper divisors (27843615094475).

137840516781685 is a wasteful number, since it uses less digits than its factorization.

137840516781685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229828.

The product of its (nonzero) digits is 270950400, while the sum is 70.

The spelling of 137840516781685 in words is "one hundred thirty-seven trillion, eight hundred forty billion, five hundred sixteen million, seven hundred eighty-one thousand, six hundred eighty-five".