25948400269861 has 8 divisors (see below), whose sum is σ = 26500576999680. Its totient is φ = 25396227002928.

The previous prime is 25948400269853. The next prime is 25948400269867. The reversal of 25948400269861 is 16896200484952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25948400269861 - 2³ = 25948400269853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25948400269793 and 25948400269802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25948400269867) 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 in 7 ways as a sum of consecutive naturals, for example, 19154080 + ... + 20464006.

It is an arithmetic number, because the mean of its divisors is an integer number (3312572124960).

Almost surely, 2^{25948400269861} is an apocalyptic number.

It is an amenable number.

25948400269861 is a deficient number, since it is larger than the sum of its proper divisors (552176729819).

25948400269861 is a wasteful number, since it uses less digits than its factorization.

25948400269861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731443.

The product of its (nonzero) digits is 59719680, while the sum is 64.

The spelling of 25948400269861 in words is "twenty-five trillion, nine hundred forty-eight billion, four hundred million, two hundred sixty-nine thousand, eight hundred sixty-one".