25794047049 has 8 divisors (see below), whose sum is σ = 35040969792. Its totient is φ = 16871577840.

The previous prime is 25794047029. The next prime is 25794047051. The reversal of 25794047049 is 94074049752.

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

It is not a de Polignac number, because 25794047049 - 2⁸ = 25794046793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25794046992 and 25794047010.

It is not an unprimeable number, because it can be changed into a prime (25794047009) 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, 81113197 + ... + 81113514.

It is an arithmetic number, because the mean of its divisors is an integer number (4380121224).

Almost surely, 2^25794047049 is an apocalyptic number.

It is an amenable number.

25794047049 is a deficient number, since it is larger than the sum of its proper divisors (9246922743).

25794047049 is a wasteful number, since it uses less digits than its factorization.

25794047049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162226767.

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 25794047049 in words is "twenty-five billion, seven hundred ninety-four million, forty-seven thousand, forty-nine".