6434951859 has 24 divisors (see below), whose sum is σ = 10722067200. Its totient is φ = 3642745968.

The previous prime is 6434951857. The next prime is 6434951869. The reversal of 6434951859 is 9581594346.

It is not a de Polignac number, because 6434951859 - 2¹ = 6434951857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6434951857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 470559 + ... + 484040.

It is an arithmetic number, because the mean of its divisors is an integer number (446752800).

Almost surely, 2^6434951859 is an apocalyptic number.

6434951859 is a deficient number, since it is larger than the sum of its proper divisors (4287115341).

6434951859 is a wasteful number, since it uses less digits than its factorization.

6434951859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954719 (or 954716 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The square root of 6434951859 is about 80218.1516802775. The cubic root of 6434951859 is about 1860.0092359930.

The spelling of 6434951859 in words is "six billion, four hundred thirty-four million, nine hundred fifty-one thousand, eight hundred fifty-nine".