6436464355 has 4 divisors (see below), whose sum is σ = 7723757232. Its totient is φ = 5149171480.

The previous prime is 6436464341. The next prime is 6436464379. The reversal of 6436464355 is 5534646346.

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

It is not a de Polignac number, because 6436464355 - 2⁵ = 6436464323 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643646431 + ... + 643646440.

It is an arithmetic number, because the mean of its divisors is an integer number (1930939308).

Almost surely, 2^6436464355 is an apocalyptic number.

6436464355 is a deficient number, since it is larger than the sum of its proper divisors (1287292877).

6436464355 is a wasteful number, since it uses less digits than its factorization.

6436464355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287292876.

The product of its digits is 3110400, while the sum is 46.

The square root of 6436464355 is about 80227.5785188610. The cubic root of 6436464355 is about 1860.1549525011.

The spelling of 6436464355 in words is "six billion, four hundred thirty-six million, four hundred sixty-four thousand, three hundred fifty-five".