3493445681 has 8 divisors (see below), whose sum is σ = 3856948704. Its totient is φ = 3137595520.

The previous prime is 3493445663. The next prime is 3493445699. The reversal of 3493445681 is 1865443943.

It is an interprime number because it is at equal distance from previous prime (3493445663) and next prime (3493445699).

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 3493445681 - 2¹⁸ = 3493183537 is a prime.

It is a super-2 number, since 2×3493445681² = 24408325452195107522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3493445881) 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, 1912256 + ... + 1914081.

It is an arithmetic number, because the mean of its divisors is an integer number (482118588).

Almost surely, 2^3493445681 is an apocalyptic number.

It is an amenable number.

3493445681 is a deficient number, since it is larger than the sum of its proper divisors (363503023).

3493445681 is a wasteful number, since it uses less digits than its factorization.

3493445681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3826431.

The product of its digits is 1244160, while the sum is 47.

The square root of 3493445681 is about 59105.3777671711. The cubic root of 3493445681 is about 1517.3461426302.

The spelling of 3493445681 in words is "three billion, four hundred ninety-three million, four hundred forty-five thousand, six hundred eighty-one".