172424156908 has 6 divisors (see below), whose sum is σ = 301742274596. Its totient is φ = 86212078452.

The previous prime is 172424156899. The next prime is 172424156941. The reversal of 172424156908 is 809651424271.

172424156908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 21553019610 + ... + 21553019617.

Almost surely, 2^172424156908 is an apocalyptic number.

It is an amenable number.

172424156908 is a deficient number, since it is larger than the sum of its proper divisors (129318117688).

172424156908 is a wasteful number, since it uses less digits than its factorization.

172424156908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43106039231 (or 43106039229 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 172424156908 in words is "one hundred seventy-two billion, four hundred twenty-four million, one hundred fifty-six thousand, nine hundred eight".