25726233667 has 2 divisors, whose sum is σ = 25726233668. Its totient is φ = 25726233666.

The previous prime is 25726233623. The next prime is 25726233691. The reversal of 25726233667 is 76633262752.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25726233667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25726233667.

It is not a weakly prime, because it can be changed into another prime (25726233367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12863116833 + 12863116834.

It is an arithmetic number, because the mean of its divisors is an integer number (12863116834).

Almost surely, 2^25726233667 is an apocalyptic number.

25726233667 is a deficient number, since it is larger than the sum of its proper divisors (1).

25726233667 is an equidigital number, since it uses as much as digits as its factorization.

25726233667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 49.

The spelling of 25726233667 in words is "twenty-five billion, seven hundred twenty-six million, two hundred thirty-three thousand, six hundred sixty-seven".