259599353745978 has 24 divisors (see below), whose sum is σ = 571998576052800. Its totient is φ = 85066454899464.

The previous prime is 259599353745947. The next prime is 259599353745983. The reversal of 259599353745978 is 879547353995952.

259599353745978 is a `hidden beast` number, since 2 + 5 + 9 + 5 + 9 + 9 + 3 + 5 + 3 + 7 + 4 + 597 + 8 = 666.

259599353745978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122221916898 + ... + 122221919021.

It is an arithmetic number, because the mean of its divisors is an integer number (23833274002200).

Almost surely, 2^{259599353745978} is an apocalyptic number.

259599353745978 is an abundant number, since it is smaller than the sum of its proper divisors (312399222306822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

259599353745978 is a wasteful number, since it uses less digits than its factorization.

259599353745978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244443835986 (or 244443835983 counting only the distinct ones).

The product of its digits is 115736040000, while the sum is 90.

The spelling of 259599353745978 in words is "two hundred fifty-nine trillion, five hundred ninety-nine billion, three hundred fifty-three million, seven hundred forty-five thousand, nine hundred seventy-eight".