256966857483 has 32 divisors (see below), whose sum is σ = 415075244544. Its totient is φ = 138042911232.

The previous prime is 256966857461. The next prime is 256966857487. The reversal of 256966857483 is 384758669652.

It is not a de Polignac number, because 256966857483 - 2¹⁰ = 256966856459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256966857487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97285 + ... + 723462.

It is an arithmetic number, because the mean of its divisors is an integer number (12971101392).

Almost surely, 2^256966857483 is an apocalyptic number.

256966857483 is a deficient number, since it is larger than the sum of its proper divisors (158108387061).

256966857483 is a wasteful number, since it uses less digits than its factorization.

256966857483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821651.

The product of its digits is 522547200, while the sum is 69.

The spelling of 256966857483 in words is "two hundred fifty-six billion, nine hundred sixty-six million, eight hundred fifty-seven thousand, four hundred eighty-three".