25705672515869 has 8 divisors (see below), whose sum is σ = 25734062257920. Its totient is φ = 25677292164496.

The previous prime is 25705672515751. The next prime is 25705672515893. The reversal of 25705672515869 is 96851527650752.

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 25705672515869 - 2¹² = 25705672511773 is a prime.

It is a super-2 number, since 2×25705672515869² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25705672515799 and 25705672515808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25705672535869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3137144 + ... + 7826430.

It is an arithmetic number, because the mean of its divisors is an integer number (3216757782240).

Almost surely, 2^{25705672515869} is an apocalyptic number.

It is an amenable number.

25705672515869 is a deficient number, since it is larger than the sum of its proper divisors (28389742051).

25705672515869 is a wasteful number, since it uses less digits than its factorization.

25705672515869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4695339.

The product of its (nonzero) digits is 317520000, while the sum is 68.

The spelling of 25705672515869 in words is "twenty-five trillion, seven hundred five billion, six hundred seventy-two million, five hundred fifteen thousand, eight hundred sixty-nine".