57428745305 has 16 divisors (see below), whose sum is σ = 71220101904. Its totient is φ = 44425758720.

The previous prime is 57428745221. The next prime is 57428745373. The reversal of 57428745305 is 50354782475.

57428745305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 19040964121 + 38387781184 = 137989^2 + 195928^2 .

It is a de Polignac number, because none of the positive numbers 2^k-57428745305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1216394 + ... + 1262723.

It is an arithmetic number, because the mean of its divisors is an integer number (4451256369).

Almost surely, 2^57428745305 is an apocalyptic number.

It is an amenable number.

57428745305 is a deficient number, since it is larger than the sum of its proper divisors (13791356599).

57428745305 is a wasteful number, since it uses less digits than its factorization.

57428745305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479276.

The product of its (nonzero) digits is 4704000, while the sum is 50.

The spelling of 57428745305 in words is "fifty-seven billion, four hundred twenty-eight million, seven hundred forty-five thousand, three hundred five".