6481609735 has 16 divisors (see below), whose sum is σ = 8042176512. Its totient is φ = 5009680800.

The previous prime is 6481609733. The next prime is 6481609801. The reversal of 6481609735 is 5379061846.

6481609735 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6481609735 - 2¹ = 6481609733 is a prime.

It is a super-2 number, since 2×6481609735² = 84022529513693540450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6481609733) 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, 59640 + ... + 128530.

It is an arithmetic number, because the mean of its divisors is an integer number (502636032).

Almost surely, 2^6481609735 is an apocalyptic number.

6481609735 is a deficient number, since it is larger than the sum of its proper divisors (1560566777).

6481609735 is a wasteful number, since it uses less digits than its factorization.

6481609735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69534.

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

The square root of 6481609735 is about 80508.4451160249. The cubic root of 6481609735 is about 1864.4938679797.

The spelling of 6481609735 in words is "six billion, four hundred eighty-one million, six hundred nine thousand, seven hundred thirty-five".