736649681718768 has 40 divisors (see below), whose sum is σ = 1954444425826128. Its totient is φ = 238913410286592.

The previous prime is 736649681718707. The next prime is 736649681718781. The reversal of 736649681718768 is 867817186946637.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207390111321 + ... + 207390114872.

Almost surely, 2^{736649681718768} is an apocalyptic number.

It is an amenable number.

736649681718768 is an abundant number, since it is smaller than the sum of its proper divisors (1217794744107360).

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

736649681718768 is a wasteful number, since it uses less digits than its factorization.

736649681718768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414780226241 (or 414780226235 counting only the distinct ones).

The product of its digits is 24580620288, while the sum is 87.

The spelling of 736649681718768 in words is "seven hundred thirty-six trillion, six hundred forty-nine billion, six hundred eighty-one million, seven hundred eighteen thousand, seven hundred sixty-eight".