6428201117 has 6 divisors (see below), whose sum is σ = 6960715002. Its totient is φ = 5933723952.

The previous prime is 6428201111. The next prime is 6428201119. The reversal of 6428201117 is 7111028246.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 77545636 + 6350655481 = 8806^2 + 79691^2 .

It is not a de Polignac number, because 6428201117 - 2²⁶ = 6361092253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6428201111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19018178 + ... + 19018515.

It is an arithmetic number, because the mean of its divisors is an integer number (1160119167).

Almost surely, 2^6428201117 is an apocalyptic number.

It is an amenable number.

6428201117 is a deficient number, since it is larger than the sum of its proper divisors (532513885).

6428201117 is a wasteful number, since it uses less digits than its factorization.

6428201117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38036719 (or 38036706 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 6428201117 is about 80176.0632420924. The cubic root of 6428201117 is about 1859.3585791745.

The spelling of 6428201117 in words is "six billion, four hundred twenty-eight million, two hundred one thousand, one hundred seventeen".