137658940989706 has 8 divisors (see below), whose sum is σ = 206488462377600. Its totient is φ = 68829453530508.

The previous prime is 137658940989673. The next prime is 137658940989707. The reversal of 137658940989706 is 607989049856731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 137658940989706.

It is not an unprimeable number, because it can be changed into a prime (137658940989707) 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, 8308945 + ... + 18556843.

It is an arithmetic number, because the mean of its divisors is an integer number (25811057797200).

Almost surely, 2^{137658940989706} is an apocalyptic number.

137658940989706 is a deficient number, since it is larger than the sum of its proper divisors (68829521387894).

137658940989706 is a wasteful number, since it uses less digits than its factorization.

137658940989706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16964348.

The product of its (nonzero) digits is 4938071040, while the sum is 82.

The spelling of 137658940989706 in words is "one hundred thirty-seven trillion, six hundred fifty-eight billion, nine hundred forty million, nine hundred eighty-nine thousand, seven hundred six".