171077029812 has 36 divisors (see below), whose sum is σ = 465709693540. Its totient is φ = 52639085952.

The previous prime is 171077029807. The next prime is 171077029867. The reversal of 171077029812 is 218920770171.

It can be written as a sum of positive squares in 2 ways, for example, as 89403392016 + 81673637796 = 299004^2 + 285786^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182774137 + ... + 182775072.

Almost surely, 2^171077029812 is an apocalyptic number.

171077029812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

171077029812 is an abundant number, since it is smaller than the sum of its proper divisors (294632663728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171077029812 is a wasteful number, since it uses less digits than its factorization.

171077029812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365549232 (or 365549227 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 45.

Adding to 171077029812 its reverse (218920770171), we get a palindrome (389997799983).

The spelling of 171077029812 in words is "one hundred seventy-one billion, seventy-seven million, twenty-nine thousand, eight hundred twelve".