168272392765 has 8 divisors (see below), whose sum is σ = 213804922680. Its totient is φ = 126699213312.

The previous prime is 168272392711. The next prime is 168272392801. The reversal of 168272392765 is 567293272861.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8894187481 + 159378205284 = 94309^2 + 399222^2 .

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 168272392765 - 2¹³ = 168272384573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 989837520 + ... + 989837689.

It is an arithmetic number, because the mean of its divisors is an integer number (26725615335).

Almost surely, 2^168272392765 is an apocalyptic number.

It is an amenable number.

168272392765 is a deficient number, since it is larger than the sum of its proper divisors (45532529915).

168272392765 is a wasteful number, since it uses less digits than its factorization.

168272392765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979675231.

The product of its digits is 15240960, while the sum is 58.

The spelling of 168272392765 in words is "one hundred sixty-eight billion, two hundred seventy-two million, three hundred ninety-two thousand, seven hundred sixty-five".