25894243120 has 40 divisors (see below), whose sum is σ = 60824794464. Its totient is φ = 10250913792.

The previous prime is 25894243099. The next prime is 25894243127. The reversal of 25894243120 is 2134249852.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (25894243127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1660684 + ... + 1676203.

Almost surely, 2^25894243120 is an apocalyptic number.

25894243120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25894243120 is an abundant number, since it is smaller than the sum of its proper divisors (34930551344).

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

25894243120 is a wasteful number, since it uses less digits than its factorization.

25894243120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336997 (or 3336991 counting only the distinct ones).

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

The spelling of 25894243120 in words is "twenty-five billion, eight hundred ninety-four million, two hundred forty-three thousand, one hundred twenty".