57733447772 has 216 divisors, whose sum is σ = 139969519200. Its totient is φ = 20636985600.

The previous prime is 57733447679. The next prime is 57733447789. The reversal of 57733447772 is 27774433775.

It is a super-3 number, since 3×57733447772³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 61352822 + ... + 61353762.

Almost surely, 2^57733447772 is an apocalyptic number.

57733447772 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57733447772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69984759600).

57733447772 is an abundant number, since it is smaller than the sum of its proper divisors (82236071428).

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

57733447772 is a wasteful number, since it uses less digits than its factorization.

57733447772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193 (or 1173 counting only the distinct ones).

The product of its digits is 24202080, while the sum is 56.

It can be divided in two parts, 57733 and 447772, that added together give a palindrome (505505).

The spelling of 57733447772 in words is "fifty-seven billion, seven hundred thirty-three million, four hundred forty-seven thousand, seven hundred seventy-two".