25740413116866 has 80 divisors (see below), whose sum is σ = 65953254407040. Its totient is φ = 7350386549760.

The previous prime is 25740413116841. The next prime is 25740413116879. The reversal of 25740413116866 is 66861131404752.

25740413116866 is a `hidden beast` number, since 2 + 5 + 7 + 4 + 0 + 413 + 1 + 168 + 66 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 39 ways as a sum of consecutive naturals, for example, 4122111 + ... + 8274818.

It is an arithmetic number, because the mean of its divisors is an integer number (824415680088).

Almost surely, 2^{25740413116866} is an apocalyptic number.

25740413116866 is an abundant number, since it is smaller than the sum of its proper divisors (40212841290174).

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

25740413116866 is a wasteful number, since it uses less digits than its factorization.

25740413116866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12398781 (or 12398772 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 25740413116866 in words is "twenty-five trillion, seven hundred forty billion, four hundred thirteen million, one hundred sixteen thousand, eight hundred sixty-six".