25146863104 has 80 divisors (see below), whose sum is σ = 54941483520. Its totient is φ = 11403458560.

The previous prime is 25146863099. The next prime is 25146863149. The reversal of 25146863104 is 40136864152.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2489937 + ... + 2500015.

It is an arithmetic number, because the mean of its divisors is an integer number (686768544).

Almost surely, 2^25146863104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25146863104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27470741760).

25146863104 is an abundant number, since it is smaller than the sum of its proper divisors (29794620416).

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

25146863104 is a wasteful number, since it uses less digits than its factorization.

25146863104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10551 (or 10535 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 25146863104 in words is "twenty-five billion, one hundred forty-six million, eight hundred sixty-three thousand, one hundred four".