4409864146681 has 16 divisors (see below), whose sum is σ = 5237335987200. Its totient is φ = 3633401787840.

The previous prime is 4409864146679. The next prime is 4409864146739. The reversal of 4409864146681 is 1866414689044.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4409864146681 - 2¹ = 4409864146679 is a prime.

It is a super-2 number, since 2×4409864146681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4409864149681) 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, 68162146 + ... + 68226811.

It is an arithmetic number, because the mean of its divisors is an integer number (327333499200).

Almost surely, 2^{4409864146681} is an apocalyptic number.

It is an amenable number.

4409864146681 is a deficient number, since it is larger than the sum of its proper divisors (827471840519).

4409864146681 is a wasteful number, since it uses less digits than its factorization.

4409864146681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136389144.

The product of its (nonzero) digits is 31850496, while the sum is 61.

The spelling of 4409864146681 in words is "four trillion, four hundred nine billion, eight hundred sixty-four million, one hundred forty-six thousand, six hundred eighty-one".