25608934434 has 16 divisors (see below), whose sum is σ = 51982315488. Its totient is φ = 8408903712.

The previous prime is 25608934411. The next prime is 25608934441. The reversal of 25608934434 is 43443980652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31851507 + ... + 31852310.

It is an arithmetic number, because the mean of its divisors is an integer number (3248894718).

Almost surely, 2^25608934434 is an apocalyptic number.

25608934434 is an abundant number, since it is smaller than the sum of its proper divisors (26373381054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25608934434 is a wasteful number, since it uses less digits than its factorization.

25608934434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63703889.

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 25608934434 in words is "twenty-five billion, six hundred eight million, nine hundred thirty-four thousand, four hundred thirty-four".