25428907794 has 8 divisors (see below), whose sum is σ = 50857815600. Its totient is φ = 8476302596.

The previous prime is 25428907793. The next prime is 25428907831. The reversal of 25428907794 is 49770982452.

It is a sphenic number, since it is the product of 3 distinct primes.

25428907794 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (25428907793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2119075644 + ... + 2119075655.

It is an arithmetic number, because the mean of its divisors is an integer number (6357226950).

Almost surely, 2^25428907794 is an apocalyptic number.

25428907794 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25428907794 is a wasteful number, since it uses less digits than its factorization.

25428907794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238151304.

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 25428907794 in words is "twenty-five billion, four hundred twenty-eight million, nine hundred seven thousand, seven hundred ninety-four".