57000377980 has 192 divisors, whose sum is σ = 150862924800. Its totient is φ = 17975865600.

The previous prime is 57000377977. The next prime is 57000377983. The reversal of 57000377980 is 8977300075.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57000377977) and next prime (57000377983).

It is a self number, because there is not a number n which added to its sum of digits gives 57000377980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57000377983) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29517615 + ... + 29519545.

It is an arithmetic number, because the mean of its divisors is an integer number (785744400).

Almost surely, 2^57000377980 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 57000377980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75431462400).

57000377980 is an abundant number, since it is smaller than the sum of its proper divisors (93862546820).

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

57000377980 is a wasteful number, since it uses less digits than its factorization.

57000377980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305 (or 2289 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 46.

The spelling of 57000377980 in words is "fifty-seven billion, three hundred seventy-seven thousand, nine hundred eighty".