15414540331247 has 2 divisors, whose sum is σ = 15414540331248. Its totient is φ = 15414540331246.

The previous prime is 15414540331207. The next prime is 15414540331271. The reversal of 15414540331247 is 74213304541451.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15414540331247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15414540331198 and 15414540331207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15414540331207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7707270165623 + 7707270165624.

It is an arithmetic number, because the mean of its divisors is an integer number (7707270165624).

Almost surely, 2^{15414540331247} is an apocalyptic number.

15414540331247 is a deficient number, since it is larger than the sum of its proper divisors (1).

15414540331247 is an equidigital number, since it uses as much as digits as its factorization.

15414540331247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 806400, while the sum is 44.

Adding to 15414540331247 its reverse (74213304541451), we get a palindrome (89627844872698).

The spelling of 15414540331247 in words is "fifteen trillion, four hundred fourteen billion, five hundred forty million, three hundred thirty-one thousand, two hundred forty-seven".