171872648794 has 48 divisors (see below), whose sum is σ = 327066058368. Its totient is φ = 66300300000.

The previous prime is 171872648789. The next prime is 171872648861. The reversal of 171872648794 is 497846278171.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 331182 + ... + 673369.

It is an arithmetic number, because the mean of its divisors is an integer number (6813876216).

Almost surely, 2^171872648794 is an apocalyptic number.

171872648794 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

171872648794 is a deficient number, since it is larger than the sum of its proper divisors (155193409574).

171872648794 is a wasteful number, since it uses less digits than its factorization.

171872648794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004683 (or 1004672 counting only the distinct ones).

The product of its digits is 37933056, while the sum is 64.

The spelling of 171872648794 in words is "one hundred seventy-one billion, eight hundred seventy-two million, six hundred forty-eight thousand, seven hundred ninety-four".