256498459359 has 8 divisors (see below), whose sum is σ = 343165175472. Its totient is φ = 170415358080.

The previous prime is 256498459297. The next prime is 256498459379. The reversal of 256498459359 is 953954894652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-256498459359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256498459293 and 256498459302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256498459379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145902682 + ... + 145904439.

It is an arithmetic number, because the mean of its divisors is an integer number (42895646934).

Almost surely, 2^256498459359 is an apocalyptic number.

256498459359 is a deficient number, since it is larger than the sum of its proper divisors (86666716113).

256498459359 is a wasteful number, since it uses less digits than its factorization.

256498459359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291807417.

The product of its digits is 419904000, while the sum is 69.

The spelling of 256498459359 in words is "two hundred fifty-six billion, four hundred ninety-eight million, four hundred fifty-nine thousand, three hundred fifty-nine".