25867468450 has 24 divisors (see below), whose sum is σ = 48539285028. Its totient is φ = 10255418880.

The previous prime is 25867468441. The next prime is 25867468483. The reversal of 25867468450 is 5486476852.

It can be written as a sum of positive squares in 6 ways, for example, as 2448369361 + 23419099089 = 49481^2 + 153033^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25867468391 and 25867468400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2283507 + ... + 2294806.

Almost surely, 2^25867468450 is an apocalyptic number.

25867468450 is a deficient number, since it is larger than the sum of its proper divisors (22671816578).

25867468450 is a wasteful number, since it uses less digits than its factorization.

25867468450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4578438 (or 4578433 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 55.

The spelling of 25867468450 in words is "twenty-five billion, eight hundred sixty-seven million, four hundred sixty-eight thousand, four hundred fifty".