172223740723 has 8 divisors (see below), whose sum is σ = 175894525440. Its totient is φ = 168553224840.

The previous prime is 172223740699. The next prime is 172223740757. The reversal of 172223740723 is 327047322271.

172223740723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 172223740723 - 2⁹ = 172223740211 is a prime.

It is a super-2 number, since 2×172223740723² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172223747723) by changing a digit.

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, 1739668 + ... + 1835998.

It is an arithmetic number, because the mean of its divisors is an integer number (21986815680).

Almost surely, 2^172223740723 is an apocalyptic number.

172223740723 is a deficient number, since it is larger than the sum of its proper divisors (3670784717).

172223740723 is an equidigital number, since it uses as much as digits as its factorization.

172223740723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134417.

The product of its (nonzero) digits is 197568, while the sum is 40.

The spelling of 172223740723 in words is "one hundred seventy-two billion, two hundred twenty-three million, seven hundred forty thousand, seven hundred twenty-three".