6551851634 has 4 divisors (see below), whose sum is σ = 9827777454. Its totient is φ = 3275925816.

The previous prime is 6551851613. The next prime is 6551851637. The reversal of 6551851634 is 4361581556.

6551851634 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3376191025 + 3175660609 = 58105^2 + 56353^2 .

It is not an unprimeable number, because it can be changed into a prime (6551851637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1637962907 + ... + 1637962910.

Almost surely, 2^6551851634 is an apocalyptic number.

6551851634 is a deficient number, since it is larger than the sum of its proper divisors (3275925820).

6551851634 is a wasteful number, since it uses less digits than its factorization.

6551851634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275925819.

The product of its digits is 432000, while the sum is 44.

The square root of 6551851634 is about 80943.5089059030. The cubic root of 6551851634 is about 1871.2049231633.

The spelling of 6551851634 in words is "six billion, five hundred fifty-one million, eight hundred fifty-one thousand, six hundred thirty-four".