172427938697 has 8 divisors (see below), whose sum is σ = 197068044096. Its totient is φ = 147789718992.

The previous prime is 172427938687. The next prime is 172427938777. The reversal of 172427938697 is 796839724271.

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 172427938697 - 2⁶ = 172427938633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172427938637) 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, 269723 + ... + 646224.

It is an arithmetic number, because the mean of its divisors is an integer number (24633505512).

Almost surely, 2^172427938697 is an apocalyptic number.

It is an amenable number.

172427938697 is a deficient number, since it is larger than the sum of its proper divisors (24640105399).

172427938697 is an equidigital number, since it uses as much as digits as its factorization.

172427938697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942847.

The product of its digits is 64012032, while the sum is 65.

The spelling of 172427938697 in words is "one hundred seventy-two billion, four hundred twenty-seven million, nine hundred thirty-eight thousand, six hundred ninety-seven".