171613832078 has 12 divisors (see below), whose sum is σ = 278745544368. Its totient is φ = 79206383880.

The previous prime is 171613832021. The next prime is 171613832087. The reversal of 171613832078 is 870238316171.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 253866278 + ... + 253866953.

It is an arithmetic number, because the mean of its divisors is an integer number (23228795364).

Almost surely, 2^171613832078 is an apocalyptic number.

171613832078 is a deficient number, since it is larger than the sum of its proper divisors (107131712290).

171613832078 is a wasteful number, since it uses less digits than its factorization.

171613832078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507733259 (or 507733246 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 171613832078 in words is "one hundred seventy-one billion, six hundred thirteen million, eight hundred thirty-two thousand, seventy-eight".