172318486608659 has 16 divisors (see below), whose sum is σ = 178094025181440. Its totient is φ = 166644916727520.

The previous prime is 172318486608613. The next prime is 172318486608691. The reversal of 172318486608659 is 956806684813271.

172318486608659 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 172318486608659 - 2¹⁶ = 172318486543123 is a prime.

It is a super-2 number, since 2×172318486608659² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172318486608259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26397932 + ... + 32272089.

It is an arithmetic number, because the mean of its divisors is an integer number (11130876573840).

It is a 1-persistent number, because it is pandigital, but 2⋅172318486608659 = 344636973217318 is not.

Almost surely, 2^{172318486608659} is an apocalyptic number.

172318486608659 is a deficient number, since it is larger than the sum of its proper divisors (5775538572781).

172318486608659 is an equidigital number, since it uses as much as digits as its factorization.

172318486608659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58670890.

The product of its (nonzero) digits is 836075520, while the sum is 74.

The spelling of 172318486608659 in words is "one hundred seventy-two trillion, three hundred eighteen billion, four hundred eighty-six million, six hundred eight thousand, six hundred fifty-nine".