172237228875 has 128 divisors (see below), whose sum is σ = 321578000640. Its totient is φ = 90961920000.

The previous prime is 172237228817. The next prime is 172237228879. The reversal of 172237228875 is 578822732271.

It is a happy number.

172237228875 is a `hidden beast` number, since 1 + 7 + 223 + 72 + 288 + 75 = 666.

It is not a de Polignac number, because 172237228875 - 2¹¹ = 172237226827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172237228879) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 183035905 + ... + 183036845.

It is an arithmetic number, because the mean of its divisors is an integer number (2512328130).

Almost surely, 2^172237228875 is an apocalyptic number.

172237228875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

172237228875 is a deficient number, since it is larger than the sum of its proper divisors (149340771765).

172237228875 is a wasteful number, since it uses less digits than its factorization.

172237228875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439 (or 1423 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 54.

The spelling of 172237228875 in words is "one hundred seventy-two billion, two hundred thirty-seven million, two hundred twenty-eight thousand, eight hundred seventy-five".