84171517860 has 48 divisors (see below), whose sum is σ = 235852134336. Its totient is φ = 22429368192.

The previous prime is 84171517849. The next prime is 84171517907. The reversal of 84171517860 is 6871517148.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428494 + ... + 593253.

It is an arithmetic number, because the mean of its divisors is an integer number (4913586132).

Almost surely, 2^84171517860 is an apocalyptic number.

It is an amenable number.

84171517860 is an abundant number, since it is smaller than the sum of its proper divisors (151680616476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84171517860 is a wasteful number, since it uses less digits than its factorization.

84171517860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023132 (or 1023130 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 48.

The spelling of 84171517860 in words is "eighty-four billion, one hundred seventy-one million, five hundred seventeen thousand, eight hundred sixty".