172859962068 has 18 divisors (see below), whose sum is σ = 436951570874. Its totient is φ = 57619987344.

The previous prime is 172859962039. The next prime is 172859962091. The reversal of 172859962068 is 860269958271.

172859962068 is a `hidden beast` number, since 17 + 2 + 8 + 599 + 6 + 20 + 6 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 146251175184 + 26608786884 = 382428^2 + 163122^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 172859961996 and 172859962014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2400832771 + ... + 2400832842.

Almost surely, 2^172859962068 is an apocalyptic number.

172859962068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

172859962068 is an abundant number, since it is smaller than the sum of its proper divisors (264091608806).

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

172859962068 is a wasteful number, since it uses less digits than its factorization.

172859962068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4801665623 (or 4801665618 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 172859962068 in words is "one hundred seventy-two billion, eight hundred fifty-nine million, nine hundred sixty-two thousand, sixty-eight".