32173952640 has 128 divisors (see below), whose sum is σ = 105862878720. Its totient is φ = 8302940160.

The previous prime is 32173952579. The next prime is 32173952669. The reversal of 32173952640 is 4625937123.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 32173952592 and 32173952601.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210759 + ... + 329798.

It is an arithmetic number, because the mean of its divisors is an integer number (827053740).

Almost surely, 2^32173952640 is an apocalyptic number.

32173952640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32173952640 is an abundant number, since it is smaller than the sum of its proper divisors (73688926080).

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

32173952640 is a wasteful number, since it uses less digits than its factorization.

32173952640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540610 (or 540598 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 32173952640 in words is "thirty-two billion, one hundred seventy-three million, nine hundred fifty-two thousand, six hundred forty".