57147435760 has 80 divisors (see below), whose sum is σ = 139872101184. Its totient is φ = 21671530496.

The previous prime is 57147435733. The next prime is 57147435769. The reversal of 57147435760 is 6753474175.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57147435769) 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, 70494 + ... + 345346.

Almost surely, 2^57147435760 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 57147435760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69936050592).

57147435760 is an abundant number, since it is smaller than the sum of its proper divisors (82724665424).

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

57147435760 is a wasteful number, since it uses less digits than its factorization.

57147435760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275002 (or 274996 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 49.

The spelling of 57147435760 in words is "fifty-seven billion, one hundred forty-seven million, four hundred thirty-five thousand, seven hundred sixty".