11821725245 has 8 divisors (see below), whose sum is σ = 15475713120. Its totient is φ = 8597618320.

The previous prime is 11821725169. The next prime is 11821725247. The reversal of 11821725245 is 54252712811.

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

It is not a de Polignac number, because 11821725245 - 2¹⁰ = 11821724221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11821725199 and 11821725208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11821725247) 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, 107470175 + ... + 107470284.

It is an arithmetic number, because the mean of its divisors is an integer number (1934464140).

Almost surely, 2^11821725245 is an apocalyptic number.

It is an amenable number.

11821725245 is a deficient number, since it is larger than the sum of its proper divisors (3653987875).

11821725245 is a wasteful number, since it uses less digits than its factorization.

11821725245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214940475.

The product of its digits is 44800, while the sum is 38.

The spelling of 11821725245 in words is "eleven billion, eight hundred twenty-one million, seven hundred twenty-five thousand, two hundred forty-five".