172235287032 has 64 divisors (see below), whose sum is σ = 435072000000. Its totient is φ = 56815219584.

The previous prime is 172235287001. The next prime is 172235287051. The reversal of 172235287032 is 230782532271.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2112969 + ... + 2192967.

It is an arithmetic number, because the mean of its divisors is an integer number (6798000000).

Almost surely, 2^172235287032 is an apocalyptic number.

172235287032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172235287032 is an abundant number, since it is smaller than the sum of its proper divisors (262836712968).

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

172235287032 is a wasteful number, since it uses less digits than its factorization.

172235287032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80940 (or 80936 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 172235287032 in words is "one hundred seventy-two billion, two hundred thirty-five million, two hundred eighty-seven thousand, thirty-two".