256610462315 has 4 divisors (see below), whose sum is σ = 307932554784. Its totient is φ = 205288369848.

The previous prime is 256610462293. The next prime is 256610462363. The reversal of 256610462315 is 513264016652.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 256610462315 - 2¹² = 256610458219 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25661046227 + ... + 25661046236.

It is an arithmetic number, because the mean of its divisors is an integer number (76983138696).

Almost surely, 2^256610462315 is an apocalyptic number.

256610462315 is a deficient number, since it is larger than the sum of its proper divisors (51322092469).

256610462315 is an equidigital number, since it uses as much as digits as its factorization.

256610462315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51322092468.

The product of its (nonzero) digits is 259200, while the sum is 41.

Adding to 256610462315 its reverse (513264016652), we get a palindrome (769874478967).

The spelling of 256610462315 in words is "two hundred fifty-six billion, six hundred ten million, four hundred sixty-two thousand, three hundred fifteen".