172682473838 has 32 divisors (see below), whose sum is σ = 296818815744. Its totient is φ = 73809087552.

The previous prime is 172682473783. The next prime is 172682473841. The reversal of 172682473838 is 838374286271.

172682473838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 9346706 + ... + 9365162.

It is an arithmetic number, because the mean of its divisors is an integer number (9275587992).

Almost surely, 2^172682473838 is an apocalyptic number.

172682473838 is a deficient number, since it is larger than the sum of its proper divisors (124136341906).

172682473838 is a wasteful number, since it uses less digits than its factorization.

172682473838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20216.

The product of its digits is 21676032, while the sum is 59.

The spelling of 172682473838 in words is "one hundred seventy-two billion, six hundred eighty-two million, four hundred seventy-three thousand, eight hundred thirty-eight".