256483657279 has 2 divisors, whose sum is σ = 256483657280. Its totient is φ = 256483657278.

The previous prime is 256483657271. The next prime is 256483657291. The reversal of 256483657279 is 972756384652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 256483657279 - 2³ = 256483657271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 256483657279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256483657271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128241828639 + 128241828640.

It is an arithmetic number, because the mean of its divisors is an integer number (128241828640).

Almost surely, 2^256483657279 is an apocalyptic number.

256483657279 is a deficient number, since it is larger than the sum of its proper divisors (1).

256483657279 is an equidigital number, since it uses as much as digits as its factorization.

256483657279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 152409600, while the sum is 64.

The spelling of 256483657279 in words is "two hundred fifty-six billion, four hundred eighty-three million, six hundred fifty-seven thousand, two hundred seventy-nine".