3287813020857 has 12 divisors (see below), whose sum is σ = 4750013320000. Its totient is φ = 2191436854488.

The previous prime is 3287813020847. The next prime is 3287813020859. The reversal of 3287813020857 is 7580203187823.

3287813020857 is a `hidden beast` number, since 3 + 287 + 8 + 1 + 302 + 0 + 8 + 57 = 666.

It is not a de Polignac number, because 3287813020857 - 2²⁰ = 3287811972281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3287813020859) 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, 36493573 + ... + 36583554.

Almost surely, 2^{3287813020857} is an apocalyptic number.

It is an amenable number.

3287813020857 is a deficient number, since it is larger than the sum of its proper divisors (1462200299143).

3287813020857 is a wasteful number, since it uses less digits than its factorization.

3287813020857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73082132 (or 73082129 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 3287813020857 in words is "three trillion, two hundred eighty-seven billion, eight hundred thirteen million, twenty thousand, eight hundred fifty-seven".