25844049679644 has 288 divisors, whose sum is σ = 80747417726976. Its totient is φ = 7072146339840.

The previous prime is 25844049679621. The next prime is 25844049679661. The reversal of 25844049679644 is 44697694044852.

25844049679644 is a `hidden beast` number, since 2 + 5 + 8 + 4 + 4 + 0 + 496 + 7 + 96 + 44 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19828042 + ... + 21091214.

Almost surely, 2^{25844049679644} 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 25844049679644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40373708863488).

25844049679644 is an abundant number, since it is smaller than the sum of its proper divisors (54903368047332).

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

25844049679644 is a wasteful number, since it uses less digits than its factorization.

25844049679644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263327 (or 1263313 counting only the distinct ones).

The product of its (nonzero) digits is 1672151040, while the sum is 72.

The spelling of 25844049679644 in words is "twenty-five trillion, eight hundred forty-four billion, forty-nine million, six hundred seventy-nine thousand, six hundred forty-four".