25643584620480 has 112 divisors (see below), whose sum is σ = 84958310859264. Its totient is φ = 6540972303360.

The previous prime is 25643584620469. The next prime is 25643584620517. The reversal of 25643584620480 is 8402648534652.

It is a self number, because there is not a number n which added to its sum of digits gives 25643584620480.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 580675036 + ... + 580719195.

Almost surely, 2^{25643584620480} is an apocalyptic number.

25643584620480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25643584620480 is an abundant number, since it is smaller than the sum of its proper divisors (59314726238784).

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

25643584620480 is a wasteful number, since it uses less digits than its factorization.

25643584620480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161394274 (or 1161394264 counting only the distinct ones).

The product of its (nonzero) digits is 44236800, while the sum is 57.

The spelling of 25643584620480 in words is "twenty-five trillion, six hundred forty-three billion, five hundred eighty-four million, six hundred twenty thousand, four hundred eighty".