172113748642 has 8 divisors (see below), whose sum is σ = 281640679632. Its totient is φ = 78233522100.

The previous prime is 172113748619. The next prime is 172113748699. The reversal of 172113748642 is 246847311271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 172113748592 and 172113748601.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3911676084 + ... + 3911676127.

It is an arithmetic number, because the mean of its divisors is an integer number (35205084954).

Almost surely, 2^172113748642 is an apocalyptic number.

172113748642 is a deficient number, since it is larger than the sum of its proper divisors (109526930990).

172113748642 is a wasteful number, since it uses less digits than its factorization.

172113748642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7823352224.

The product of its digits is 451584, while the sum is 46.

The spelling of 172113748642 in words is "one hundred seventy-two billion, one hundred thirteen million, seven hundred forty-eight thousand, six hundred forty-two".