25481421726852 has 96 divisors (see below), whose sum is σ = 77028859264000. Its totient is φ = 6366671010432.

The previous prime is 25481421726781. The next prime is 25481421726881. The reversal of 25481421726852 is 25862712418452.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 25481421726792 and 25481421726801.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 614048602 + ... + 614090097.

Almost surely, 2^{25481421726852} is an apocalyptic number.

It is an amenable number.

25481421726852 is an abundant number, since it is smaller than the sum of its proper divisors (51547437537148).

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

25481421726852 is a wasteful number, since it uses less digits than its factorization.

25481421726852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228138745 (or 1228138743 counting only the distinct ones).

The product of its digits is 17203200, while the sum is 57.

The spelling of 25481421726852 in words is "twenty-five trillion, four hundred eighty-one billion, four hundred twenty-one million, seven hundred twenty-six thousand, eight hundred fifty-two".