172352730236 has 6 divisors (see below), whose sum is σ = 301617277920. Its totient is φ = 86176365116.

The previous prime is 172352730233. The next prime is 172352730239. The reversal of 172352730236 is 632037253271.

It is an interprime number because it is at equal distance from previous prime (172352730233) and next prime (172352730239).

It is a junction number, because it is equal to n+sod(n) for n = 172352730193 and 172352730202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172352730233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21544091276 + ... + 21544091283.

It is an arithmetic number, because the mean of its divisors is an integer number (50269546320).

Almost surely, 2^172352730236 is an apocalyptic number.

It is an amenable number.

172352730236 is a deficient number, since it is larger than the sum of its proper divisors (129264547684).

172352730236 is a wasteful number, since it uses less digits than its factorization.

172352730236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43088182563 (or 43088182561 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 41.

The spelling of 172352730236 in words is "one hundred seventy-two billion, three hundred fifty-two million, seven hundred thirty thousand, two hundred thirty-six".