57381201378 has 54 divisors (see below), whose sum is σ = 125573586411. Its totient is φ = 18937019400.

The previous prime is 57381201337. The next prime is 57381201401. The reversal of 57381201378 is 87310218375.

57381201378 is a `hidden beast` number, since 5 + 73 + 8 + 1 + 201 + 378 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28690600689 + 28690600689 = 169383^2 + 169383^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=169383.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 133134823 + ... + 133135253.

Almost surely, 2^57381201378 is an apocalyptic number.

57381201378 is an abundant number, since it is smaller than the sum of its proper divisors (68192385033).

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

57381201378 is an equidigital number, since it uses as much as digits as its factorization.

57381201378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 57381201378 in words is "fifty-seven billion, three hundred eighty-one million, two hundred one thousand, three hundred seventy-eight".