258768142987 has 2 divisors, whose sum is σ = 258768142988. Its totient is φ = 258768142986.

The previous prime is 258768142979. The next prime is 258768143003. The reversal of 258768142987 is 789241867852.

258768142987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 258768142987 - 2³ = 258768142979 is a prime.

It is not a weakly prime, because it can be changed into another prime (258768142907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129384071493 + 129384071494.

It is an arithmetic number, because the mean of its divisors is an integer number (129384071494).

Almost surely, 2^258768142987 is an apocalyptic number.

258768142987 is a deficient number, since it is larger than the sum of its proper divisors (1).

258768142987 is an equidigital number, since it uses as much as digits as its factorization.

258768142987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108380160, while the sum is 67.

The spelling of 258768142987 in words is "two hundred fifty-eight billion, seven hundred sixty-eight million, one hundred forty-two thousand, nine hundred eighty-seven".