57171172512 has 96 divisors (see below), whose sum is σ = 152288640000. Its totient is φ = 18776878848.

The previous prime is 57171172511. The next prime is 57171172529. The reversal of 57171172512 is 21527117175.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (57171172511) 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 in 15 ways as a sum of consecutive naturals, for example, 3776863 + ... + 3791969.

It is an arithmetic number, because the mean of its divisors is an integer number (1586340000).

Almost surely, 2^57171172512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57171172512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76144320000).

57171172512 is an abundant number, since it is smaller than the sum of its proper divisors (95117467488).

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

57171172512 is a wasteful number, since it uses less digits than its factorization.

57171172512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15698 (or 15690 counting only the distinct ones).

The product of its digits is 34300, while the sum is 39.

Adding to 57171172512 its reverse (21527117175), we get a palindrome (78698289687).

The spelling of 57171172512 in words is "fifty-seven billion, one hundred seventy-one million, one hundred seventy-two thousand, five hundred twelve".