6726269197 has 4 divisors (see below), whose sum is σ = 6741803740. Its totient is φ = 6710734656.

The previous prime is 6726269189. The next prime is 6726269213. The reversal of 6726269197 is 7919626276.

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

It can be written as a sum of positive squares in 2 ways, for example, as 321628356 + 6404640841 = 17934^2 + 80029^2 .

It is a cyclic number.

It is not a de Polignac number, because 6726269197 - 2³ = 6726269189 is a prime.

It is a super-2 number, since 2×6726269197² = 90485394621022049618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6726269107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7766622 + ... + 7767487.

It is an arithmetic number, because the mean of its divisors is an integer number (1685450935).

Almost surely, 2^6726269197 is an apocalyptic number.

It is an amenable number.

6726269197 is a deficient number, since it is larger than the sum of its proper divisors (15534543).

6726269197 is a wasteful number, since it uses less digits than its factorization.

6726269197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15534542.

The product of its digits is 3429216, while the sum is 55.

The square root of 6726269197 is about 82013.8353998885. The cubic root of 6726269197 is about 1887.6642381654.

The spelling of 6726269197 in words is "six billion, seven hundred twenty-six million, two hundred sixty-nine thousand, one hundred ninety-seven".