3681444172723 has 32 divisors (see below), whose sum is σ = 4012535957760. Its totient is φ = 3366199710720.

The previous prime is 3681444172697. The next prime is 3681444172759. The reversal of 3681444172723 is 3272714441863.

3681444172723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3681444172723 is a prime.

It is a super-2 number, since 2×3681444172723² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3681444172423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30498015 + ... + 30618487.

It is an arithmetic number, because the mean of its divisors is an integer number (125391748680).

Almost surely, 2^{3681444172723} is an apocalyptic number.

3681444172723 is a deficient number, since it is larger than the sum of its proper divisors (331091785037).

3681444172723 is a wasteful number, since it uses less digits than its factorization.

3681444172723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120979.

The product of its digits is 5419008, while the sum is 52.

The spelling of 3681444172723 in words is "three trillion, six hundred eighty-one billion, four hundred forty-four million, one hundred seventy-two thousand, seven hundred twenty-three".