6171801457 has 2 divisors, whose sum is σ = 6171801458. Its totient is φ = 6171801456.

The previous prime is 6171801367. The next prime is 6171801479. The reversal of 6171801457 is 7541081716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5569786161 + 602015296 = 74631^2 + 24536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6171801457 is a prime.

It is a super-2 number, since 2×6171801457² = 76182266449254645698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6171801497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3085900728 + 3085900729.

It is an arithmetic number, because the mean of its divisors is an integer number (3085900729).

Almost surely, 2^6171801457 is an apocalyptic number.

It is an amenable number.

6171801457 is a deficient number, since it is larger than the sum of its proper divisors (1).

6171801457 is an equidigital number, since it uses as much as digits as its factorization.

6171801457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 40.

The square root of 6171801457 is about 78560.8137496042. The cubic root of 6171801457 is about 1834.3011945137.

The spelling of 6171801457 in words is "six billion, one hundred seventy-one million, eight hundred one thousand, four hundred fifty-seven".