172417127507 has 16 divisors (see below), whose sum is σ = 188093979072. Its totient is φ = 157428126720.

The previous prime is 172417127489. The next prime is 172417127567. The reversal of 172417127507 is 705721714271.

It is a cyclic number.

It is not a de Polignac number, because 172417127507 - 2²⁰ = 172416078931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172417127567) 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, 1063103 + ... + 1214504.

It is an arithmetic number, because the mean of its divisors is an integer number (11755873692).

Almost surely, 2^172417127507 is an apocalyptic number.

172417127507 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

172417127507 is a deficient number, since it is larger than the sum of its proper divisors (15676851565).

172417127507 is a wasteful number, since it uses less digits than its factorization.

172417127507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277758.

The product of its (nonzero) digits is 192080, while the sum is 44.

The spelling of 172417127507 in words is "one hundred seventy-two billion, four hundred seventeen million, one hundred twenty-seven thousand, five hundred seven".