6734353661 has 12 divisors (see below), whose sum is σ = 7841570940. Its totient is φ = 5766606720.

The previous prime is 6734353651. The next prime is 6734353679. The reversal of 6734353661 is 1663534376.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4412944900 + 2321408761 = 66430^2 + 48181^2 .

It is not a de Polignac number, because 6734353661 - 2¹⁴ = 6734337277 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6734353651) 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 11 ways as a sum of consecutive naturals, for example, 17276 + ... + 117333.

It is an arithmetic number, because the mean of its divisors is an integer number (653464245).

Almost surely, 2^6734353661 is an apocalyptic number.

It is an amenable number.

6734353661 is a deficient number, since it is larger than the sum of its proper divisors (1107217279).

6734353661 is a wasteful number, since it uses less digits than its factorization.

6734353661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135644 (or 135637 counting only the distinct ones).

The product of its digits is 816480, while the sum is 44.

The square root of 6734353661 is about 82063.1077951597. The cubic root of 6734353661 is about 1888.4202116539.

The spelling of 6734353661 in words is "six billion, seven hundred thirty-four million, three hundred fifty-three thousand, six hundred sixty-one".