25567871239680 has 1280 divisors, whose sum is σ = 103452734601216. Its totient is φ = 5232729784320.

The previous prime is 25567871239663. The next prime is 25567871239717. The reversal of 25567871239680 is 8693217876552.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 13365326404 + ... + 13365328316.

Almost surely, 2^{25567871239680} is an apocalyptic number.

25567871239680 is a gapful number since it is divisible by the number (20) 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 25567871239680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51726367300608).

25567871239680 is an abundant number, since it is smaller than the sum of its proper divisors (77884863361536).

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

25567871239680 is a wasteful number, since it uses less digits than its factorization.

25567871239680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2287 (or 2271 counting only the distinct ones).

The product of its (nonzero) digits is 304819200, while the sum is 69.

The spelling of 25567871239680 in words is "twenty-five trillion, five hundred sixty-seven billion, eight hundred seventy-one million, two hundred thirty-nine thousand, six hundred eighty".