137393666249 has 16 divisors (see below), whose sum is σ = 164753621760. Its totient is φ = 112023362880.

The previous prime is 137393666231. The next prime is 137393666257. The reversal of 137393666249 is 942666393731.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137393666249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137393666269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2328254 + ... + 2386535.

It is an arithmetic number, because the mean of its divisors is an integer number (10297101360).

Almost surely, 2^137393666249 is an apocalyptic number.

It is an amenable number.

137393666249 is a deficient number, since it is larger than the sum of its proper divisors (27359955511).

137393666249 is a wasteful number, since it uses less digits than its factorization.

137393666249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4715000.

The product of its digits is 26453952, while the sum is 59.

The spelling of 137393666249 in words is "one hundred thirty-seven billion, three hundred ninety-three million, six hundred sixty-six thousand, two hundred forty-nine".