25657934093965 has 8 divisors (see below), whose sum is σ = 30789556577280. Its totient is φ = 20526323498832.

The previous prime is 25657934093963. The next prime is 25657934093969. The reversal of 25657934093965 is 56939043975652.

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 25657934093965 - 2¹ = 25657934093963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25657934093963) 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, 2792656 + ... + 7688614.

It is an arithmetic number, because the mean of its divisors is an integer number (3848694572160).

Almost surely, 2^{25657934093965} is an apocalyptic number.

It is an amenable number.

25657934093965 is a deficient number, since it is larger than the sum of its proper divisors (5131622483315).

25657934093965 is a wasteful number, since it uses less digits than its factorization.

25657934093965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5944091.

The product of its (nonzero) digits is 1653372000, while the sum is 73.

The spelling of 25657934093965 in words is "twenty-five trillion, six hundred fifty-seven billion, nine hundred thirty-four million, ninety-three thousand, nine hundred sixty-five".