25879038659065 has 16 divisors (see below), whose sum is σ = 31060698648192. Its totient is φ = 20699329872384.

The previous prime is 25879038659041. The next prime is 25879038659081. The reversal of 25879038659065 is 56095683097852.

It is a cyclic number.

It is not a de Polignac number, because 25879038659065 - 2³¹ = 25876891175417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921374452 + ... + 921402538.

It is an arithmetic number, because the mean of its divisors is an integer number (1941293665512).

Almost surely, 2^{25879038659065} is an apocalyptic number.

It is an amenable number.

25879038659065 is a deficient number, since it is larger than the sum of its proper divisors (5181659989127).

25879038659065 is a wasteful number, since it uses less digits than its factorization.

25879038659065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56256.

The product of its (nonzero) digits is 979776000, while the sum is 73.

The spelling of 25879038659065 in words is "twenty-five trillion, eight hundred seventy-nine billion, thirty-eight million, six hundred fifty-nine thousand, sixty-five".