172527937172 has 24 divisors (see below), whose sum is σ = 306101413800. Its totient is φ = 85075375616.

The previous prime is 172527937081. The next prime is 172527937279. The reversal of 172527937172 is 271739725271.

172527937172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3347085316 + 169180851856 = 57854^2 + 411316^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484433 + ... + 761400.

It is an arithmetic number, because the mean of its divisors is an integer number (12754225575).

Almost surely, 2^172527937172 is an apocalyptic number.

It is an amenable number.

172527937172 is a deficient number, since it is larger than the sum of its proper divisors (133573476628).

172527937172 is a wasteful number, since it uses less digits than its factorization.

172527937172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246315 (or 1246313 counting only the distinct ones).

The product of its digits is 2593080, while the sum is 53.

The spelling of 172527937172 in words is "one hundred seventy-two billion, five hundred twenty-seven million, nine hundred thirty-seven thousand, one hundred seventy-two".