25798543596 has 144 divisors (see below), whose sum is σ = 83066780160. Its totient is φ = 6572275200.

The previous prime is 25798543571. The next prime is 25798543657. The reversal of 25798543596 is 69534589752.

25798543596 is a `hidden beast` number, since 2 + 579 + 8 + 5 + 4 + 3 + 59 + 6 = 666.

It is a super-2 number, since 2×25798543596² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77080 + ... + 239871.

It is an arithmetic number, because the mean of its divisors is an integer number (576852640).

Almost surely, 2^25798543596 is an apocalyptic number.

It is an amenable number.

25798543596 is an abundant number, since it is smaller than the sum of its proper divisors (57268236564).

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

25798543596 is a wasteful number, since it uses less digits than its factorization.

25798543596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317004 (or 316999 counting only the distinct ones).

The product of its digits is 81648000, while the sum is 63.

The spelling of 25798543596 in words is "twenty-five billion, seven hundred ninety-eight million, five hundred forty-three thousand, five hundred ninety-six".