6186340397 has 12 divisors (see below), whose sum is σ = 6618541500. Its totient is φ = 5780434752.

The previous prime is 6186340379. The next prime is 6186340411. The reversal of 6186340397 is 7930436816.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2457284041 + 3729056356 = 49571^2 + 61066^2 .

It is not a de Polignac number, because 6186340397 - 2⁶ = 6186340333 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 (6186340327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91022 + ... + 143727.

It is an arithmetic number, because the mean of its divisors is an integer number (551545125).

Almost surely, 2^6186340397 is an apocalyptic number.

It is an amenable number.

6186340397 is a deficient number, since it is larger than the sum of its proper divisors (432201103).

6186340397 is a wasteful number, since it uses less digits than its factorization.

6186340397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234860 (or 234841 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 6186340397 is about 78653.2923468560. The cubic root of 6186340397 is about 1835.7404221197.

The spelling of 6186340397 in words is "six billion, one hundred eighty-six million, three hundred forty thousand, three hundred ninety-seven".