172756273873 has 8 divisors (see below), whose sum is σ = 181871808320. Its totient is φ = 163643049360.

The previous prime is 172756273793. The next prime is 172756273909. The reversal of 172756273873 is 378372657271.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172756273873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172756273073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422898 + ... + 724123.

It is an arithmetic number, because the mean of its divisors is an integer number (22733976040).

Almost surely, 2^172756273873 is an apocalyptic number.

It is an amenable number.

172756273873 is a deficient number, since it is larger than the sum of its proper divisors (9115534447).

172756273873 is a wasteful number, since it uses less digits than its factorization.

172756273873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154967.

The product of its digits is 20744640, while the sum is 58.

The spelling of 172756273873 in words is "one hundred seventy-two billion, seven hundred fifty-six million, two hundred seventy-three thousand, eight hundred seventy-three".