25709473659982 has 96 divisors (see below), whose sum is σ = 45744247444896. Its totient is φ = 10803650457600.

The previous prime is 25709473659953. The next prime is 25709473660001. The reversal of 25709473659982 is 28995637490752.

It is a junction number, because it is equal to n+sod(n) for n = 25709473659899 and 25709473659908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 768324732 + ... + 768358192.

It is an arithmetic number, because the mean of its divisors is an integer number (476502577551).

Almost surely, 2^{25709473659982} is an apocalyptic number.

25709473659982 is a deficient number, since it is larger than the sum of its proper divisors (20034773784914).

25709473659982 is a wasteful number, since it uses less digits than its factorization.

25709473659982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34322 (or 34315 counting only the distinct ones).

The product of its (nonzero) digits is 2057529600, while the sum is 76.

The spelling of 25709473659982 in words is "twenty-five trillion, seven hundred nine billion, four hundred seventy-three million, six hundred fifty-nine thousand, nine hundred eighty-two".