11725322647 has 4 divisors (see below), whose sum is σ = 11731564720. Its totient is φ = 11719080576.

The previous prime is 11725322629. The next prime is 11725322663. The reversal of 11725322647 is 74622352711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11725322647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11725322347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3118218 + ... + 3121975.

It is an arithmetic number, because the mean of its divisors is an integer number (2932891180).

Almost surely, 2^11725322647 is an apocalyptic number.

11725322647 is a deficient number, since it is larger than the sum of its proper divisors (6242073).

11725322647 is an equidigital number, since it uses as much as digits as its factorization.

11725322647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6242072.

The product of its digits is 141120, while the sum is 40.

The spelling of 11725322647 in words is "eleven billion, seven hundred twenty-five million, three hundred twenty-two thousand, six hundred forty-seven".