172402625017 has 16 divisors (see below), whose sum is σ = 197667796480. Its totient is φ = 147296947392.

The previous prime is 172402624939. The next prime is 172402625027. The reversal of 172402625017 is 710526204271.

It is not a de Polignac number, because 172402625017 - 2³⁵ = 138042886649 is a prime.

It is a super-2 number, since 2×172402625017² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172402625027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5029984 + ... + 5064142.

It is an arithmetic number, because the mean of its divisors is an integer number (12354237280).

Almost surely, 2^172402625017 is an apocalyptic number.

It is an amenable number.

172402625017 is a deficient number, since it is larger than the sum of its proper divisors (25265171463).

172402625017 is a wasteful number, since it uses less digits than its factorization.

172402625017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36472.

The product of its (nonzero) digits is 47040, while the sum is 37.

Adding to 172402625017 its reverse (710526204271), we get a palindrome (882928829288).

The spelling of 172402625017 in words is "one hundred seventy-two billion, four hundred two million, six hundred twenty-five thousand, seventeen".