57381016896 has 336 divisors, whose sum is σ = 197864715776. Its totient is φ = 16147828224.

The previous prime is 57381016859. The next prime is 57381016897. The reversal of 57381016896 is 69861018375.

57381016896 is a `hidden beast` number, since 573 + 8 + 1 + 0 + 1 + 68 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a super-2 number, since 2×57381016896² (a number of 22 digits) contains 22 as substring.

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 (57381016897) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7289955 + ... + 7297821.

Almost surely, 2^57381016896 is an apocalyptic number.

57381016896 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57381016896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98932357888).

57381016896 is an abundant number, since it is smaller than the sum of its proper divisors (140483698880).

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

57381016896 is an equidigital number, since it uses as much as digits as its factorization.

57381016896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7968 (or 7946 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 57381016896 in words is "fifty-seven billion, three hundred eighty-one million, sixteen thousand, eight hundred ninety-six".