172063830421 has 8 divisors (see below), whose sum is σ = 197284915520. Its totient is φ = 147002879808.

The previous prime is 172063830409. The next prime is 172063830467. The reversal of 172063830421 is 124038360271.

It is a happy number.

172063830421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 172063830421 - 2³³ = 163473895829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172063890421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40031316 + ... + 40035613.

It is an arithmetic number, because the mean of its divisors is an integer number (24660614440).

Almost surely, 2^172063830421 is an apocalyptic number.

It is an amenable number.

172063830421 is a deficient number, since it is larger than the sum of its proper divisors (25221085099).

172063830421 is an equidigital number, since it uses as much as digits as its factorization.

172063830421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80067243.

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 172063830421 in words is "one hundred seventy-two billion, sixty-three million, eight hundred thirty thousand, four hundred twenty-one".