11723447647 has 2 divisors, whose sum is σ = 11723447648. Its totient is φ = 11723447646.

The previous prime is 11723447611. The next prime is 11723447653. The reversal of 11723447647 is 74674432711.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11723447647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11723447597 and 11723447606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11723447657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5861723823 + 5861723824.

It is an arithmetic number, because the mean of its divisors is an integer number (5861723824).

Almost surely, 2^11723447647 is an apocalyptic number.

11723447647 is a deficient number, since it is larger than the sum of its proper divisors (1).

11723447647 is an equidigital number, since it uses as much as digits as its factorization.

11723447647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 790272, while the sum is 46.

The spelling of 11723447647 in words is "eleven billion, seven hundred twenty-three million, four hundred forty-seven thousand, six hundred forty-seven".