172740422602 has 8 divisors (see below), whose sum is σ = 282666146112. Its totient is φ = 78518373900.

The previous prime is 172740422597. The next prime is 172740422609. The reversal of 172740422602 is 206224047271.

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

It is a super-3 number, since 3×172740422602³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (172740422609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3925918674 + ... + 3925918717.

It is an arithmetic number, because the mean of its divisors is an integer number (35333268264).

Almost surely, 2^172740422602 is an apocalyptic number.

172740422602 is a deficient number, since it is larger than the sum of its proper divisors (109925723510).

172740422602 is a wasteful number, since it uses less digits than its factorization.

172740422602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7851837404.

The product of its (nonzero) digits is 75264, while the sum is 37.

Adding to 172740422602 its reverse (206224047271), we get a palindrome (378964469873).

The spelling of 172740422602 in words is "one hundred seventy-two billion, seven hundred forty million, four hundred twenty-two thousand, six hundred two".