25878862515271 has 2 divisors, whose sum is σ = 25878862515272. Its totient is φ = 25878862515270.

The previous prime is 25878862515227. The next prime is 25878862515283. The reversal of 25878862515271 is 17251526887852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25878862515271 - 2²¹ = 25878860418119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25878862515197 and 25878862515206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25878862510271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12939431257635 + 12939431257636.

It is an arithmetic number, because the mean of its divisors is an integer number (12939431257636).

Almost surely, 2^{25878862515271} is an apocalyptic number.

25878862515271 is a deficient number, since it is larger than the sum of its proper divisors (1).

25878862515271 is an equidigital number, since it uses as much as digits as its factorization.

25878862515271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528000, while the sum is 67.

The spelling of 25878862515271 in words is "twenty-five trillion, eight hundred seventy-eight billion, eight hundred sixty-two million, five hundred fifteen thousand, two hundred seventy-one".