172803961612 has 12 divisors (see below), whose sum is σ = 318323087320. Its totient is φ = 81854508096.

The previous prime is 172803961591. The next prime is 172803961663. The reversal of 172803961612 is 216169308271.

172803961612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×172803961612² (a number of 23 digits) contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 1136868093 + ... + 1136868244.

Almost surely, 2^172803961612 is an apocalyptic number.

It is an amenable number.

172803961612 is a deficient number, since it is larger than the sum of its proper divisors (145519125708).

172803961612 is a wasteful number, since it uses less digits than its factorization.

172803961612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273736360 (or 2273736358 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 172803961612 in words is "one hundred seventy-two billion, eight hundred three million, nine hundred sixty-one thousand, six hundred twelve".