172808743716 has 72 divisors (see below), whose sum is σ = 503890994880. Its totient is φ = 48912480576.

The previous prime is 172808743673. The next prime is 172808743717. The reversal of 172808743716 is 617347808271.

It is not an unprimeable number, because it can be changed into a prime (172808743717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3177471 + ... + 3231398.

It is an arithmetic number, because the mean of its divisors is an integer number (6998486040).

Almost surely, 2^172808743716 is an apocalyptic number.

It is an amenable number.

172808743716 is an abundant number, since it is smaller than the sum of its proper divisors (331082251164).

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

172808743716 is a wasteful number, since it uses less digits than its factorization.

172808743716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6408993 (or 6408988 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 54.

The spelling of 172808743716 in words is "one hundred seventy-two billion, eight hundred eight million, seven hundred forty-three thousand, seven hundred sixteen".