137678511386 has 36 divisors (see below), whose sum is σ = 226844439738. Its totient is φ = 62299578432.

The previous prime is 137678511361. The next prime is 137678511401. The reversal of 137678511386 is 683115876731.

It can be written as a sum of positive squares in 9 ways, for example, as 109749751225 + 27928760161 = 331285^2 + 167119^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 100274996 + ... + 100276368.

Almost surely, 2^137678511386 is an apocalyptic number.

137678511386 is a deficient number, since it is larger than the sum of its proper divisors (89165928352).

137678511386 is an frugal number, since it uses more digits than its factorization.

137678511386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867 (or 1441 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 56.

The spelling of 137678511386 in words is "one hundred thirty-seven billion, six hundred seventy-eight million, five hundred eleven thousand, three hundred eighty-six".