259556012378 has 16 divisors (see below), whose sum is σ = 425540744160. Its totient is φ = 118007095536.

The previous prime is 259556012351. The next prime is 259556012389. The reversal of 259556012378 is 873210655952.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74497688 + ... + 74501171.

It is an arithmetic number, because the mean of its divisors is an integer number (26596296510).

Almost surely, 2^259556012378 is an apocalyptic number.

259556012378 is a deficient number, since it is larger than the sum of its proper divisors (165984731782).

259556012378 is a wasteful number, since it uses less digits than its factorization.

259556012378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148998941.

The product of its (nonzero) digits is 4536000, while the sum is 53.

The spelling of 259556012378 in words is "two hundred fifty-nine billion, five hundred fifty-six million, twelve thousand, three hundred seventy-eight".