137646667476 has 72 divisors (see below), whose sum is σ = 353940481440. Its totient is φ = 45091429056.

The previous prime is 137646667463. The next prime is 137646667507. The reversal of 137646667476 is 674766646731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9586935 + ... + 9601281.

It is an arithmetic number, because the mean of its divisors is an integer number (4915840020).

Almost surely, 2^137646667476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137646667476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176970240720).

137646667476 is an abundant number, since it is smaller than the sum of its proper divisors (216293813964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137646667476 is a wasteful number, since it uses less digits than its factorization.

137646667476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18933 (or 18928 counting only the distinct ones).

The product of its digits is 128024064, while the sum is 63.

The spelling of 137646667476 in words is "one hundred thirty-seven billion, six hundred forty-six million, six hundred sixty-seven thousand, four hundred seventy-six".