84457475171 has 2 divisors, whose sum is σ = 84457475172. Its totient is φ = 84457475170.

The previous prime is 84457475129. The next prime is 84457475203. The reversal of 84457475171 is 17157475448.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84457475171 is a prime.

It is a super-2 number, since 2×84457475171² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (84456475171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42228737585 + 42228737586.

It is an arithmetic number, because the mean of its divisors is an integer number (42228737586).

Almost surely, 2^84457475171 is an apocalyptic number.

84457475171 is a deficient number, since it is larger than the sum of its proper divisors (1).

84457475171 is an equidigital number, since it uses as much as digits as its factorization.

84457475171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4390400, while the sum is 53.

The spelling of 84457475171 in words is "eighty-four billion, four hundred fifty-seven million, four hundred seventy-five thousand, one hundred seventy-one".