3465709681 has 12 divisors (see below), whose sum is σ = 4032510372. Its totient is φ = 2969893248.

The previous prime is 3465709679. The next prime is 3465709703. The reversal of 3465709681 is 1869075643.

It can be written as a sum of positive squares in 2 ways, for example, as 880902400 + 2584807281 = 29680^2 + 50841^2 .

It is not a de Polignac number, because 3465709681 - 2¹ = 3465709679 is a prime.

It is a super-2 number, since 2×3465709681² = 24022287185954243522, 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 (3465709781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 347541 + ... + 357373.

It is an arithmetic number, because the mean of its divisors is an integer number (336042531).

Almost surely, 2^3465709681 is an apocalyptic number.

It is an amenable number.

3465709681 is a deficient number, since it is larger than the sum of its proper divisors (566800691).

3465709681 is an equidigital number, since it uses as much as digits as its factorization.

3465709681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17040 (or 17033 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 3465709681 is about 58870.2784178910. The cubic root of 3465709681 is about 1513.3198423579.

The spelling of 3465709681 in words is "three billion, four hundred sixty-five million, seven hundred nine thousand, six hundred eighty-one".