57147752720 has 40 divisors (see below), whose sum is σ = 132921492480. Its totient is φ = 22849988480.

The previous prime is 57147752689. The next prime is 57147752731. The reversal of 57147752720 is 2725774175.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61361 + ... + 343599.

It is an arithmetic number, because the mean of its divisors is an integer number (3323037312).

Almost surely, 2^57147752720 is an apocalyptic number.

It is an amenable number.

57147752720 is an abundant number, since it is smaller than the sum of its proper divisors (75773739760).

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

57147752720 is a wasteful number, since it uses less digits than its factorization.

57147752720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284783 (or 284777 counting only the distinct ones).

The product of its (nonzero) digits is 960400, while the sum is 47.

The spelling of 57147752720 in words is "fifty-seven billion, one hundred forty-seven million, seven hundred fifty-two thousand, seven hundred twenty".