172172050835 has 8 divisors (see below), whose sum is σ = 206617369776. Its totient is φ = 137730368160.

The previous prime is 172172050823. The next prime is 172172050877. The reversal of 172172050835 is 538050271271.

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

It is not a de Polignac number, because 172172050835 - 2⁸ = 172172050579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172172050792 and 172172050801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803789 + ... + 995198.

It is an arithmetic number, because the mean of its divisors is an integer number (25827171222).

Almost surely, 2^172172050835 is an apocalyptic number.

172172050835 is a deficient number, since it is larger than the sum of its proper divisors (34445318941).

172172050835 is a wasteful number, since it uses less digits than its factorization.

172172050835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818133.

The product of its (nonzero) digits is 117600, while the sum is 41.

The spelling of 172172050835 in words is "one hundred seventy-two billion, one hundred seventy-two million, fifty thousand, eight hundred thirty-five".