57278970720 has 192 divisors, whose sum is σ = 203763833280. Its totient is φ = 15023923200.

The previous prime is 57278970719. The next prime is 57278970739. The reversal of 57278970720 is 2707987275.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 154840 + ... + 372200.

It is an arithmetic number, because the mean of its divisors is an integer number (1061269965).

Almost surely, 2^57278970720 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 57278970720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101881916640).

57278970720 is an abundant number, since it is smaller than the sum of its proper divisors (146484862560).

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

57278970720 is a wasteful number, since it uses less digits than its factorization.

57278970720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217446 (or 217432 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 54.

The spelling of 57278970720 in words is "fifty-seven billion, two hundred seventy-eight million, nine hundred seventy thousand, seven hundred twenty".