25418751168 has 112 divisors (see below), whose sum is σ = 68004395360. Its totient is φ = 8378671104.

The previous prime is 25418751143. The next prime is 25418751199. The reversal of 25418751168 is 86115781452.

It is a super-2 number, since 2×25418751168² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15339396 + ... + 15341052.

Almost surely, 2^25418751168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25418751168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34002197680).

25418751168 is an abundant number, since it is smaller than the sum of its proper divisors (42585644192).

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

25418751168 is a wasteful number, since it uses less digits than its factorization.

25418751168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514 (or 2504 counting only the distinct ones).

The product of its digits is 537600, while the sum is 48.

The spelling of 25418751168 in words is "twenty-five billion, four hundred eighteen million, seven hundred fifty-one thousand, one hundred sixty-eight".