25781842702212 has 48 divisors (see below), whose sum is σ = 60538293000192. Its totient is φ = 8539587764640.

The previous prime is 25781842702159. The next prime is 25781842702289. The reversal of 25781842702212 is 21220724818752.

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, 8971953 + ... + 11491719.

It is an arithmetic number, because the mean of its divisors is an integer number (1261214437504).

Almost surely, 2^{25781842702212} is an apocalyptic number.

It is an amenable number.

25781842702212 is an abundant number, since it is smaller than the sum of its proper divisors (34756450297980).

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

25781842702212 is a wasteful number, since it uses less digits than its factorization.

25781842702212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525168 (or 2525166 counting only the distinct ones).

The product of its (nonzero) digits is 2007040, while the sum is 51.

The spelling of 25781842702212 in words is "twenty-five trillion, seven hundred eighty-one billion, eight hundred forty-two million, seven hundred two thousand, two hundred twelve".