11724136344157 has 2 divisors, whose sum is σ = 11724136344158. Its totient is φ = 11724136344156.

The previous prime is 11724136344149. The next prime is 11724136344187. The reversal of 11724136344157 is 75144363142711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11532231895396 + 191904448761 = 3395914^2 + 438069^2 .

It is a cyclic number.

It is not a de Polignac number, because 11724136344157 - 2³ = 11724136344149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11724136344157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11724136344187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5862068172078 + 5862068172079.

It is an arithmetic number, because the mean of its divisors is an integer number (5862068172079).

Almost surely, 2^{11724136344157} is an apocalyptic number.

It is an amenable number.

11724136344157 is a deficient number, since it is larger than the sum of its proper divisors (1).

11724136344157 is an equidigital number, since it uses as much as digits as its factorization.

11724136344157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 49.

Adding to 11724136344157 its reverse (75144363142711), we get a palindrome (86868499486868).

The spelling of 11724136344157 in words is "eleven trillion, seven hundred twenty-four billion, one hundred thirty-six million, three hundred forty-four thousand, one hundred fifty-seven".