3672711681 has 4 divisors (see below), whose sum is σ = 4896948912. Its totient is φ = 2448474452.

The previous prime is 3672711667. The next prime is 3672711683. The reversal of 3672711681 is 1861172763.

3672711681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1861172763 = 3 ⋅620390921.

It is a cyclic number.

It is not a de Polignac number, because 3672711681 - 2⁶ = 3672711617 is a prime.

It is a super-2 number, since 2×3672711681² = 26977622183507691522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3672711683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612118611 + ... + 612118616.

It is an arithmetic number, because the mean of its divisors is an integer number (1224237228).

Almost surely, 2^3672711681 is an apocalyptic number.

It is an amenable number.

3672711681 is a deficient number, since it is larger than the sum of its proper divisors (1224237231).

3672711681 is a wasteful number, since it uses less digits than its factorization.

3672711681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224237230.

The product of its digits is 84672, while the sum is 42.

The square root of 3672711681 is about 60602.9015889503. The cubic root of 3672711681 is about 1542.8686174693.

The spelling of 3672711681 in words is "three billion, six hundred seventy-two million, seven hundred eleven thousand, six hundred eighty-one".