15324240861947 has 2 divisors, whose sum is σ = 15324240861948. Its totient is φ = 15324240861946.

The previous prime is 15324240861829. The next prime is 15324240861967. The reversal of 15324240861947 is 74916804242351.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15324240861947 - 2¹⁶ = 15324240796411 is a prime.

It is a super-2 number, since 2×15324240861947² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15324240861892 and 15324240861901.

It is not a weakly prime, because it can be changed into another prime (15324240861967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7662120430973 + 7662120430974.

It is an arithmetic number, because the mean of its divisors is an integer number (7662120430974).

It is a 1-persistent number, because it is pandigital, but 2⋅15324240861947 = 30648481723894 is not.

Almost surely, 2^{15324240861947} is an apocalyptic number.

15324240861947 is a deficient number, since it is larger than the sum of its proper divisors (1).

15324240861947 is an equidigital number, since it uses as much as digits as its factorization.

15324240861947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 15324240861947 in words is "fifteen trillion, three hundred twenty-four billion, two hundred forty million, eight hundred sixty-one thousand, nine hundred forty-seven".