57145405444 has 12 divisors (see below), whose sum is σ = 100039482844. Its totient is φ = 28562696064.

The previous prime is 57145405417. The next prime is 57145405451. The reversal of 57145405444 is 44450454175.

It can be written as a sum of positive squares in 2 ways, for example, as 13689000000 + 43456405444 = 117000^2 + 208462^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 57145405444.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2488809 + ... + 2511664.

Almost surely, 2^57145405444 is an apocalyptic number.

It is an amenable number.

57145405444 is a deficient number, since it is larger than the sum of its proper divisors (42894077400).

57145405444 is a wasteful number, since it uses less digits than its factorization.

57145405444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003334 (or 5003332 counting only the distinct ones).

The product of its (nonzero) digits is 896000, while the sum is 43.

The spelling of 57145405444 in words is "fifty-seven billion, one hundred forty-five million, four hundred five thousand, four hundred forty-four".