57312722880 has 840 divisors, whose sum is σ = 247734234528. Its totient is φ = 12318179328.

The previous prime is 57312722851. The next prime is 57312722893. The reversal of 57312722880 is 8822721375.

57312722880 is a `hidden beast` number, since 57 + 312 + 7 + 2 + 288 + 0 = 666.

57312722880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (840).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 52435614 + ... + 52436706.

Almost surely, 2^57312722880 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 57312722880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123867117264).

57312722880 is an abundant number, since it is smaller than the sum of its proper divisors (190421511648).

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

57312722880 is a wasteful number, since it uses less digits than its factorization.

57312722880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163 (or 1127 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 57312722880 in words is "fifty-seven billion, three hundred twelve million, seven hundred twenty-two thousand, eight hundred eighty".