84471167440018 has 32 divisors (see below), whose sum is σ = 138987149045760. Its totient is φ = 38324865143040.

The previous prime is 84471167440003. The next prime is 84471167440057. The reversal of 84471167440018 is 81004476117448.

It is a happy number.

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, 61308946 + ... + 62671597.

It is an arithmetic number, because the mean of its divisors is an integer number (4343348407680).

Almost surely, 2^{84471167440018} is an apocalyptic number.

84471167440018 is a deficient number, since it is larger than the sum of its proper divisors (54515981605742).

84471167440018 is a wasteful number, since it uses less digits than its factorization.

84471167440018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123981282.

The product of its (nonzero) digits is 4816896, while the sum is 55.

The spelling of 84471167440018 in words is "eighty-four trillion, four hundred seventy-one billion, one hundred sixty-seven million, four hundred forty thousand, eighteen".