172686330641 has 8 divisors (see below), whose sum is σ = 188406744768. Its totient is φ = 156969526000.

The previous prime is 172686330589. The next prime is 172686330647. The reversal of 172686330641 is 146033686271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172686330641 - 2⁶ = 172686330577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172686330647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801845 + ... + 994146.

It is an arithmetic number, because the mean of its divisors is an integer number (23550843096).

Almost surely, 2^172686330641 is an apocalyptic number.

172686330641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

172686330641 is a deficient number, since it is larger than the sum of its proper divisors (15720414127).

172686330641 is a wasteful number, since it uses less digits than its factorization.

172686330641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804743.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 172686330641 in words is "one hundred seventy-two billion, six hundred eighty-six million, three hundred thirty thousand, six hundred forty-one".