3446746681 has 9 divisors (see below), whose sum is σ = 4009958949. Its totient is φ = 2954002044.

The previous prime is 3446746613. The next prime is 3446746691. The reversal of 3446746681 is 1866476443.

The square root of 3446746681 is 58709.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 3446746681 - 2⁷ = 3446746553 is a prime.

It is a super-2 number, since 2×3446746681² = 23760125365969031522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3446746691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 406770 + ... + 415156.

Almost surely, 2^3446746681 is an apocalyptic number.

3446746681 is the 58709-th square number.

3446746681 is the 29355-th centered octagonal number.

It is an amenable number.

3446746681 is a deficient number, since it is larger than the sum of its proper divisors (563212268).

3446746681 is an frugal number, since it uses more digits than its factorization.

3446746681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16788 (or 8394 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 49.

The cubic root of 3446746681 is about 1510.5546959935.

Multiplying 3446746681 by its sum of digits (49), we get a square (168890587369 = 410963²).

3446746681 divided by its sum of digits (49) gives a square (70341769 = 8387²).

The spelling of 3446746681 in words is "three billion, four hundred forty-six million, seven hundred forty-six thousand, six hundred eighty-one".