25794283140 has 120 divisors (see below), whose sum is σ = 81004315392. Its totient is φ = 6871106880.

The previous prime is 25794283103. The next prime is 25794283147. The reversal of 25794283140 is 4138249752.

25794283140 is a `hidden beast` number, since 2 + 579 + 4 + 2 + 8 + 31 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (25794283147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1597387 + ... + 1613453.

Almost surely, 2^25794283140 is an apocalyptic number.

25794283140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25794283140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40502157696).

25794283140 is an abundant number, since it is smaller than the sum of its proper divisors (55210032252).

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

25794283140 is a wasteful number, since it uses less digits than its factorization.

25794283140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17079 (or 17068 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 25794283140 in words is "twenty-five billion, seven hundred ninety-four million, two hundred eighty-three thousand, one hundred forty".