3651740721303 has 16 divisors (see below), whose sum is σ = 4985663291136. Its totient is φ = 2376234241920.

The previous prime is 3651740721289. The next prime is 3651740721403. The reversal of 3651740721303 is 3031270471563.

It is a happy number.

3651740721303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3651740721303 - 2⁸ = 3651740721047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3651740721203) 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, 9594978 + ... + 9968303.

It is an arithmetic number, because the mean of its divisors is an integer number (311603955696).

Almost surely, 2^{3651740721303} is an apocalyptic number.

3651740721303 is a deficient number, since it is larger than the sum of its proper divisors (1333922569833).

3651740721303 is a wasteful number, since it uses less digits than its factorization.

3651740721303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19564774.

The product of its (nonzero) digits is 317520, while the sum is 42.

The spelling of 3651740721303 in words is "three trillion, six hundred fifty-one billion, seven hundred forty million, seven hundred twenty-one thousand, three hundred three".