6436911745 has 16 divisors (see below), whose sum is σ = 8585497152. Its totient is φ = 4593060160.

The previous prime is 6436911707. The next prime is 6436911791. The reversal of 6436911745 is 5471196346.

It is not a de Polignac number, because 6436911745 - 2⁹ = 6436911233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6436911695 and 6436911704.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1101187 + ... + 1107016.

It is an arithmetic number, because the mean of its divisors is an integer number (536593572).

Almost surely, 2^6436911745 is an apocalyptic number.

It is an amenable number.

6436911745 is a deficient number, since it is larger than the sum of its proper divisors (2148585407).

6436911745 is a wasteful number, since it uses less digits than its factorization.

6436911745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208272.

The product of its digits is 544320, while the sum is 46.

The square root of 6436911745 is about 80230.3667260720. The cubic root of 6436911745 is about 1860.1980504608.

The spelling of 6436911745 in words is "six billion, four hundred thirty-six million, nine hundred eleven thousand, seven hundred forty-five".