25975047168 has 176 divisors, whose sum is σ = 87915538560. Its totient is φ = 7421386752.

The previous prime is 25975047151. The next prime is 25975047173. The reversal of 25975047168 is 86174057952.

25975047168 is a `hidden beast` number, since 2 + 5 + 9 + 7 + 504 + 71 + 68 = 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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126430 + ... + 260642.

Almost surely, 2^25975047168 is an apocalyptic number.

25975047168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25975047168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43957769280).

25975047168 is an abundant number, since it is smaller than the sum of its proper divisors (61940491392).

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

25975047168 is a wasteful number, since it uses less digits than its factorization.

25975047168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134249 (or 134225 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 25975047168 in words is "twenty-five billion, nine hundred seventy-five million, forty-seven thousand, one hundred sixty-eight".