25494468249667 has 2 divisors, whose sum is σ = 25494468249668. Its totient is φ = 25494468249666.

The previous prime is 25494468249637. The next prime is 25494468249673. The reversal of 25494468249667 is 76694286449452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25494468249667 - 2²⁷ = 25494334031939 is a prime.

It is a super-2 number, since 2×25494468249667² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25494468249593 and 25494468249602.

It is not a weakly prime, because it can be changed into another prime (25494468249637) 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 as a sum of consecutive naturals, namely, 12747234124833 + 12747234124834.

It is an arithmetic number, because the mean of its divisors is an integer number (12747234124834).

Almost surely, 2^{25494468249667} is an apocalyptic number.

25494468249667 is a deficient number, since it is larger than the sum of its proper divisors (1).

25494468249667 is an equidigital number, since it uses as much as digits as its factorization.

25494468249667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5016453120, while the sum is 76.

The spelling of 25494468249667 in words is "twenty-five trillion, four hundred ninety-four billion, four hundred sixty-eight million, two hundred forty-nine thousand, six hundred sixty-seven".