25538730411012 has 48 divisors (see below), whose sum is σ = 73341995029632. Its totient is φ = 6735489338880.

The previous prime is 25538730410993. The next prime is 25538730411013. The reversal of 25538730411012 is 21011403783552.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (25538730411013) by changing a digit.

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, 11693556789 + ... + 11693558972.

It is an arithmetic number, because the mean of its divisors is an integer number (1527958229784).

Almost surely, 2^{25538730411012} is an apocalyptic number.

It is an amenable number.

25538730411012 is an abundant number, since it is smaller than the sum of its proper divisors (47803264618620).

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

25538730411012 is a wasteful number, since it uses less digits than its factorization.

25538730411012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23387115788 (or 23387115786 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 25538730411012 in words is "twenty-five trillion, five hundred thirty-eight billion, seven hundred thirty million, four hundred eleven thousand, twelve".