6428294197 has 18 divisors (see below), whose sum is σ = 7126795494. Its totient is φ = 5763830400.

The previous prime is 6428294143. The next prime is 6428294207. The reversal of 6428294197 is 7914928246.

It can be written as a sum of positive squares in 9 ways, for example, as 368294481 + 6059999716 = 19191^2 + 77846^2 .

It is not a de Polignac number, because 6428294197 - 2²³ = 6419905589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6428291197) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10695697 + ... + 10696297.

It is an arithmetic number, because the mean of its divisors is an integer number (395933083).

Almost surely, 2^6428294197 is an apocalyptic number.

It is an amenable number.

6428294197 is a deficient number, since it is larger than the sum of its proper divisors (698501297).

6428294197 is an frugal number, since it uses more digits than its factorization.

6428294197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289 (or 651 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

The square root of 6428294197 is about 80176.6437124927. The cubic root of 6428294197 is about 1859.3675536013.

Multiplying 6428294197 by its sum of digits (52), we get a square (334271298244 = 578162²).

The spelling of 6428294197 in words is "six billion, four hundred twenty-eight million, two hundred ninety-four thousand, one hundred ninety-seven".