57123406044 has 36 divisors (see below), whose sum is σ = 144421693416. Its totient is φ = 19037651808.

The previous prime is 57123406033. The next prime is 57123406049. The reversal of 57123406044 is 44060432175.

57123406044 is a `hidden beast` number, since 5 + 7 + 1 + 2 + 3 + 40 + 604 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57123406049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58267 + ... + 342989.

It is an arithmetic number, because the mean of its divisors is an integer number (4011713706).

Almost surely, 2^57123406044 is an apocalyptic number.

It is an amenable number.

57123406044 is an abundant number, since it is smaller than the sum of its proper divisors (87298287372).

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

57123406044 is a wasteful number, since it uses less digits than its factorization.

57123406044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290306 (or 290301 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 57123406044 in words is "fifty-seven billion, one hundred twenty-three million, four hundred six thousand, forty-four".