25840616135 has 16 divisors (see below), whose sum is σ = 31768420320. Its totient is φ = 20170350720.

The previous prime is 25840616129. The next prime is 25840616143. The reversal of 25840616135 is 53161604852.

It is not a de Polignac number, because 25840616135 - 2⁴ = 25840616119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25840616092 and 25840616101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221405 + ... + 317334.

It is an arithmetic number, because the mean of its divisors is an integer number (1985526270).

Almost surely, 2^25840616135 is an apocalyptic number.

25840616135 is a deficient number, since it is larger than the sum of its proper divisors (5927804185).

25840616135 is a wasteful number, since it uses less digits than its factorization.

25840616135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538978.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 25840616135 in words is "twenty-five billion, eight hundred forty million, six hundred sixteen thousand, one hundred thirty-five".