172929435812 has 12 divisors (see below), whose sum is σ = 345858871680. Its totient is φ = 74112615336.

The previous prime is 172929435803. The next prime is 172929435817. The reversal of 172929435812 is 218534929271.

172929435812 is an admirable number.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (172929435817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3088025612 + ... + 3088025667.

It is an arithmetic number, because the mean of its divisors is an integer number (28821572640).

Almost surely, 2^172929435812 is an apocalyptic number.

It is an amenable number.

172929435812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172929435812 is a wasteful number, since it uses less digits than its factorization.

172929435812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6176051290 (or 6176051288 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The spelling of 172929435812 in words is "one hundred seventy-two billion, nine hundred twenty-nine million, four hundred thirty-five thousand, eight hundred twelve".