6613197457 has 2 divisors, whose sum is σ = 6613197458. Its totient is φ = 6613197456.

The previous prime is 6613197449. The next prime is 6613197469. The reversal of 6613197457 is 7547913166.

6613197457 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6613105041 + 92416 = 81321^2 + 304^2 .

It is a cyclic number.

It is not a de Polignac number, because 6613197457 - 2³ = 6613197449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6613197457.

It is not a weakly prime, because it can be changed into another prime (6613197757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3306598728 + 3306598729.

It is an arithmetic number, because the mean of its divisors is an integer number (3306598729).

Almost surely, 2^6613197457 is an apocalyptic number.

It is an amenable number.

6613197457 is a deficient number, since it is larger than the sum of its proper divisors (1).

6613197457 is an equidigital number, since it uses as much as digits as its factorization.

6613197457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 49.

The square root of 6613197457 is about 81321.5682153265. The cubic root of 6613197457 is about 1877.0269003231.

The spelling of 6613197457 in words is "six billion, six hundred thirteen million, one hundred ninety-seven thousand, four hundred fifty-seven".