25645442710 has 16 divisors (see below), whose sum is σ = 46169224992. Its totient is φ = 10256526400.

The previous prime is 25645442689. The next prime is 25645442741. The reversal of 25645442710 is 1724454652.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140071 + ... + 266290.

It is an arithmetic number, because the mean of its divisors is an integer number (2885576562).

Almost surely, 2^25645442710 is an apocalyptic number.

25645442710 is a deficient number, since it is larger than the sum of its proper divisors (20523782282).

25645442710 is a wasteful number, since it uses less digits than its factorization.

25645442710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412679.

The product of its (nonzero) digits is 268800, while the sum is 40.

The spelling of 25645442710 in words is "twenty-five billion, six hundred forty-five million, four hundred forty-two thousand, seven hundred ten".