2857257036 has 36 divisors (see below), whose sum is σ = 7398673464. Its totient is φ = 929188800.

The previous prime is 2857256999. The next prime is 2857257043. The reversal of 2857257036 is 6307527582.

2857257036 is a `hidden beast` number, since 2 + 8 + 5 + 72 + 570 + 3 + 6 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 2857256982 and 2857257000.

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 11 ways as a sum of consecutive naturals, for example, 966430 + ... + 969381.

Almost surely, 2^2857257036 is an apocalyptic number.

It is an amenable number.

2857257036 is an abundant number, since it is smaller than the sum of its proper divisors (4541416428).

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

2857257036 is a wasteful number, since it uses less digits than its factorization.

2857257036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935862 (or 1935857 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The square root of 2857257036 is about 53453.3164172252. The cubic root of 2857257036 is about 1419.0023138074.

The spelling of 2857257036 in words is "two billion, eight hundred fifty-seven million, two hundred fifty-seven thousand, thirty-six".