78466100870171 has 16 divisors (see below), whose sum is σ = 94950841222080. Its totient is φ = 63300206976000.

The previous prime is 78466100870167. The next prime is 78466100870203. The reversal of 78466100870171 is 17107800166487.

It is a cyclic number.

It is not a de Polignac number, because 78466100870171 - 2² = 78466100870167 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78466102870171) 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, 57144671 + ... + 58501671.

It is an arithmetic number, because the mean of its divisors is an integer number (5934427576380).

Almost surely, 2^{78466100870171} is an apocalyptic number.

78466100870171 is a deficient number, since it is larger than the sum of its proper divisors (16484740351909).

78466100870171 is a wasteful number, since it uses less digits than its factorization.

78466100870171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842934.

The product of its (nonzero) digits is 3161088, while the sum is 56.

The spelling of 78466100870171 in words is "seventy-eight trillion, four hundred sixty-six billion, one hundred million, eight hundred seventy thousand, one hundred seventy-one".