57644034318 has 128 divisors (see below), whose sum is σ = 143529738240. Its totient is φ = 17028506880.

The previous prime is 57644034293. The next prime is 57644034323. The reversal of 57644034318 is 81343044675.

57644034318 is a `hidden beast` number, since 576 + 4 + 40 + 3 + 4 + 31 + 8 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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 63 ways as a sum of consecutive naturals, for example, 2753346 + ... + 2774202.

It is an arithmetic number, because the mean of its divisors is an integer number (1121326080).

Almost surely, 2^57644034318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57644034318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71764869120).

57644034318 is an abundant number, since it is smaller than the sum of its proper divisors (85885703922).

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

57644034318 is a wasteful number, since it uses less digits than its factorization.

57644034318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21039 (or 21033 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 57644034318 in words is "fifty-seven billion, six hundred forty-four million, thirty-four thousand, three hundred eighteen".