172712836389 has 32 divisors (see below), whose sum is σ = 245159608320. Its totient is φ = 107961940800.

The previous prime is 172712836379. The next prime is 172712836391. The reversal of 172712836389 is 983638217271.

It is not a de Polignac number, because 172712836389 - 2⁸ = 172712836133 is a prime.

It is a super-3 number, since 3×172712836389³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172712836369) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 717394 + ... + 927404.

It is an arithmetic number, because the mean of its divisors is an integer number (7661237760).

Almost surely, 2^172712836389 is an apocalyptic number.

It is an amenable number.

172712836389 is a deficient number, since it is larger than the sum of its proper divisors (72446771931).

172712836389 is a wasteful number, since it uses less digits than its factorization.

172712836389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210321.

The product of its digits is 6096384, while the sum is 57.

The spelling of 172712836389 in words is "one hundred seventy-two billion, seven hundred twelve million, eight hundred thirty-six thousand, three hundred eighty-nine".