3506426681 has 8 divisors (see below), whose sum is σ = 3791681280. Its totient is φ = 3229949248.

The previous prime is 3506426617. The next prime is 3506426683. The reversal of 3506426681 is 1866246053.

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 3506426681 - 2⁶ = 3506426617 is a prime.

It is a super-2 number, since 2×3506426681² = 24590056138457351522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3506426683) 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, 2193461 + ... + 2195058.

It is an arithmetic number, because the mean of its divisors is an integer number (473960160).

Almost surely, 2^3506426681 is an apocalyptic number.

It is an amenable number.

3506426681 is a deficient number, since it is larger than the sum of its proper divisors (285254599).

3506426681 is a wasteful number, since it uses less digits than its factorization.

3506426681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4388583.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 3506426681 is about 59215.0882883746. The cubic root of 3506426681 is about 1519.2232124264.

The spelling of 3506426681 in words is "three billion, five hundred six million, four hundred twenty-six thousand, six hundred eighty-one".