25986068971 has 2 divisors, whose sum is σ = 25986068972. Its totient is φ = 25986068970.

The previous prime is 25986068923. The next prime is 25986069007. The reversal of 25986068971 is 17986068952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25986068971 - 2¹¹ = 25986066923 is a prime.

It is not a weakly prime, because it can be changed into another prime (25986068671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12993034485 + 12993034486.

It is an arithmetic number, because the mean of its divisors is an integer number (12993034486).

Almost surely, 2^25986068971 is an apocalyptic number.

25986068971 is a deficient number, since it is larger than the sum of its proper divisors (1).

25986068971 is an equidigital number, since it uses as much as digits as its factorization.

25986068971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13063680, while the sum is 61.

The spelling of 25986068971 in words is "twenty-five billion, nine hundred eighty-six million, sixty-eight thousand, nine hundred seventy-one".