861468171 has 16 divisors (see below), whose sum is σ = 1189209600. Its totient is φ = 554052128.

The previous prime is 861468133. The next prime is 861468173. The reversal of 861468171 is 171864168.

It is a cyclic number.

It is not a de Polignac number, because 861468171 - 2⁶ = 861468107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (861468173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126040 + ... + 132698.

It is an arithmetic number, because the mean of its divisors is an integer number (74325600).

Almost surely, 2^861468171 is an apocalyptic number.

861468171 is a deficient number, since it is larger than the sum of its proper divisors (327741429).

861468171 is a wasteful number, since it uses less digits than its factorization.

861468171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8178.

The product of its digits is 64512, while the sum is 42.

The square root of 861468171 is about 29350.7780305736. The cubic root of 861468171 is about 951.5093904051.

The spelling of 861468171 in words is "eight hundred sixty-one million, four hundred sixty-eight thousand, one hundred seventy-one".