137681946764 has 6 divisors (see below), whose sum is σ = 240943406844. Its totient is φ = 68840973380.

The previous prime is 137681946757. The next prime is 137681946791. The reversal of 137681946764 is 467649186731.

It is a junction number, because it is equal to n+sod(n) for n = 137681946697 and 137681946706.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17210243342 + ... + 17210243349.

It is an arithmetic number, because the mean of its divisors is an integer number (40157234474).

Almost surely, 2^137681946764 is an apocalyptic number.

It is an amenable number.

137681946764 is a deficient number, since it is larger than the sum of its proper divisors (103261460080).

137681946764 is a wasteful number, since it uses less digits than its factorization.

137681946764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34420486695 (or 34420486693 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 62.

The spelling of 137681946764 in words is "one hundred thirty-seven billion, six hundred eighty-one million, nine hundred forty-six thousand, seven hundred sixty-four".