4271815897 has 2 divisors, whose sum is σ = 4271815898. Its totient is φ = 4271815896.

The previous prime is 4271815837. The next prime is 4271815931. The reversal of 4271815897 is 7985181724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4241135376 + 30680521 = 65124^2 + 5539^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4271815897 is a prime.

It is a super-2 number, since 2×4271815897² = 36496822115723829218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4271815837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2135907948 + 2135907949.

It is an arithmetic number, because the mean of its divisors is an integer number (2135907949).

Almost surely, 2^4271815897 is an apocalyptic number.

It is an amenable number.

4271815897 is a deficient number, since it is larger than the sum of its proper divisors (1).

4271815897 is an equidigital number, since it uses as much as digits as its factorization.

4271815897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 52.

The square root of 4271815897 is about 65359.1301732206. The cubic root of 4271815897 is about 1622.5727419126.

The spelling of 4271815897 in words is "four billion, two hundred seventy-one million, eight hundred fifteen thousand, eight hundred ninety-seven".