3724648681 has 8 divisors (see below), whose sum is σ = 4185558720. Its totient is φ = 3288652752.

The previous prime is 3724648673. The next prime is 3724648693. The reversal of 3724648681 is 1868464273.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3724648681 - 2³ = 3724648673 is a prime.

It is a super-2 number, since 2×3724648681² = 27746015593750079522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3724648381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6228211 + ... + 6228808.

It is an arithmetic number, because the mean of its divisors is an integer number (523194840).

Almost surely, 2^3724648681 is an apocalyptic number.

It is an amenable number.

3724648681 is a deficient number, since it is larger than the sum of its proper divisors (460910039).

3724648681 is a wasteful number, since it uses less digits than its factorization.

3724648681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12457055.

The product of its digits is 1548288, while the sum is 49.

The square root of 3724648681 is about 61029.8998934129. The cubic root of 3724648681 is about 1550.1073364448.

The spelling of 3724648681 in words is "three billion, seven hundred twenty-four million, six hundred forty-eight thousand, six hundred eighty-one".