25867648641416 has 32 divisors (see below), whose sum is σ = 49048609816800. Its totient is φ = 12788030048640.

The previous prime is 25867648641361. The next prime is 25867648641431. The reversal of 25867648641416 is 61414684676852.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19112951 + ... + 20421561.

It is an arithmetic number, because the mean of its divisors is an integer number (1532769056775).

Almost surely, 2^{25867648641416} is an apocalyptic number.

It is an amenable number.

25867648641416 is a deficient number, since it is larger than the sum of its proper divisors (23180961175384).

25867648641416 is a wasteful number, since it uses less digits than its factorization.

25867648641416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336469 (or 1336465 counting only the distinct ones).

The product of its digits is 371589120, while the sum is 68.

The spelling of 25867648641416 in words is "twenty-five trillion, eight hundred sixty-seven billion, six hundred forty-eight million, six hundred forty-one thousand, four hundred sixteen".