172291214723 has 8 divisors (see below), whose sum is σ = 175565853840. Its totient is φ = 169031098080.

The previous prime is 172291214687. The next prime is 172291214731. The reversal of 172291214723 is 327412192271.

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 172291214723 - 2⁸ = 172291214467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172291214323) 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, 3606665 + ... + 3654122.

It is an arithmetic number, because the mean of its divisors is an integer number (21945731730).

Almost surely, 2^172291214723 is an apocalyptic number.

172291214723 is a deficient number, since it is larger than the sum of its proper divisors (3274639117).

172291214723 is an equidigital number, since it uses as much as digits as its factorization.

172291214723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7261237.

The product of its digits is 84672, while the sum is 41.

The spelling of 172291214723 in words is "one hundred seventy-two billion, two hundred ninety-one million, two hundred fourteen thousand, seven hundred twenty-three".