25860142519 has 2 divisors, whose sum is σ = 25860142520. Its totient is φ = 25860142518.

The previous prime is 25860142513. The next prime is 25860142573. The reversal of 25860142519 is 91524106852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25860142519 - 2¹³ = 25860134327 is a prime.

It is a super-2 number, since 2×25860142519² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25860142513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12930071259 + 12930071260.

It is an arithmetic number, because the mean of its divisors is an integer number (12930071260).

Almost surely, 2^25860142519 is an apocalyptic number.

25860142519 is a deficient number, since it is larger than the sum of its proper divisors (1).

25860142519 is an equidigital number, since it uses as much as digits as its factorization.

25860142519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 25860142519 in words is "twenty-five billion, eight hundred sixty million, one hundred forty-two thousand, five hundred nineteen".