25868742804087 has 8 divisors (see below), whose sum is σ = 34528467809136. Its totient is φ = 17227423167552.

The previous prime is 25868742804071. The next prime is 25868742804103. The reversal of 25868742804087 is 78040824786852.

It is an interprime number because it is at equal distance from previous prime (25868742804071) and next prime (25868742804103).

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

It is not a de Polignac number, because 25868742804087 - 2⁴ = 25868742804071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25868742824087) by changing a digit.

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, 4601338848 + ... + 4601344469.

It is an arithmetic number, because the mean of its divisors is an integer number (4316058476142).

Almost surely, 2^{25868742804087} is an apocalyptic number.

25868742804087 is a deficient number, since it is larger than the sum of its proper divisors (8659725005049).

25868742804087 is an equidigital number, since it uses as much as digits as its factorization.

25868742804087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9202684257.

The product of its (nonzero) digits is 385351680, while the sum is 69.

The spelling of 25868742804087 in words is "twenty-five trillion, eight hundred sixty-eight billion, seven hundred forty-two million, eight hundred four thousand, eighty-seven".