57278119680 has 720 divisors, whose sum is σ = 215397439488. Its totient is φ = 14515200000.

The previous prime is 57278119673. The next prime is 57278119687. The reversal of 57278119680 is 8691187275.

57278119680 is a `hidden beast` number, since 572 + 7 + 8 + 1 + 1 + 9 + 68 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (57278119673) and next prime (57278119687).

It is a tau number, because it is divible by the number of its divisors (720).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57278119687) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 228199555 + ... + 228199805.

Almost surely, 2^57278119680 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 57278119680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107698719744).

57278119680 is an abundant number, since it is smaller than the sum of its proper divisors (158119319808).

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

57278119680 is a wasteful number, since it uses less digits than its factorization.

57278119680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 54.

The spelling of 57278119680 in words is "fifty-seven billion, two hundred seventy-eight million, one hundred nineteen thousand, six hundred eighty".