25689472848 has 60 divisors (see below), whose sum is σ = 77425222420. Its totient is φ = 7904452608.

The previous prime is 25689472819. The next prime is 25689472877. The reversal of 25689472848 is 84827498652.

25689472848 is a `hidden beast` number, since 2 + 5 + 6 + 89 + 472 + 84 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (25689472819) and next prime (25689472877).

It can be written as a sum of positive squares in 2 ways, for example, as 9282937104 + 16406535744 = 96348^2 + 128088^2 .

It is a super-2 number, since 2×25689472848² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 6859633 + ... + 6863376.

Almost surely, 2^25689472848 is an apocalyptic number.

It is an amenable number.

25689472848 is an abundant number, since it is smaller than the sum of its proper divisors (51735749572).

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

25689472848 is a wasteful number, since it uses less digits than its factorization.

25689472848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13723036 (or 13723027 counting only the distinct ones).

The product of its digits is 61931520, while the sum is 63.

The spelling of 25689472848 in words is "twenty-five billion, six hundred eighty-nine million, four hundred seventy-two thousand, eight hundred forty-eight".