172006712831 has 2 divisors, whose sum is σ = 172006712832. Its totient is φ = 172006712830.

The previous prime is 172006712807. The next prime is 172006712851. The reversal of 172006712831 is 138217600271.

172006712831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172006712831 - 2³⁰ = 170932971007 is a prime.

It is a super-2 number, since 2×172006712831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172006712851) by changing a digit.

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 as a sum of consecutive naturals, namely, 86003356415 + 86003356416.

It is an arithmetic number, because the mean of its divisors is an integer number (86003356416).

Almost surely, 2^172006712831 is an apocalyptic number.

172006712831 is a deficient number, since it is larger than the sum of its proper divisors (1).

172006712831 is an equidigital number, since it uses as much as digits as its factorization.

172006712831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 38.

The spelling of 172006712831 in words is "one hundred seventy-two billion, six million, seven hundred twelve thousand, eight hundred thirty-one".