172113748641 has 8 divisors (see below), whose sum is σ = 254983331360. Its totient is φ = 114742499076.

The previous prime is 172113748619. The next prime is 172113748699. The reversal of 172113748641 is 146847311271.

172113748641 is a `hidden beast` number, since 1 + 7 + 211 + 374 + 8 + 64 + 1 = 666.

It is not a de Polignac number, because 172113748641 - 2⁶ = 172113748577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (172113748141) 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, 3187291615 + ... + 3187291668.

It is an arithmetic number, because the mean of its divisors is an integer number (31872916420).

Almost surely, 2^172113748641 is an apocalyptic number.

It is an amenable number.

172113748641 is a deficient number, since it is larger than the sum of its proper divisors (82869582719).

172113748641 is an equidigital number, since it uses as much as digits as its factorization.

172113748641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6374583292 (or 6374583286 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The spelling of 172113748641 in words is "one hundred seventy-two billion, one hundred thirteen million, seven hundred forty-eight thousand, six hundred forty-one".