15400938469247 has 2 divisors, whose sum is σ = 15400938469248. Its totient is φ = 15400938469246.

The previous prime is 15400938469079. The next prime is 15400938469297. The reversal of 15400938469247 is 74296483900451.

It is a strong prime.

It is an emirp because it is prime and its reverse (74296483900451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15400938469247 - 2⁴² = 11002891958143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15400938469247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15400938469297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7700469234623 + 7700469234624.

It is an arithmetic number, because the mean of its divisors is an integer number (7700469234624).

It is a 1-persistent number, because it is pandigital, but 2⋅15400938469247 = 30801876938494 is not.

Almost surely, 2^{15400938469247} is an apocalyptic number.

15400938469247 is a deficient number, since it is larger than the sum of its proper divisors (1).

15400938469247 is an equidigital number, since it uses as much as digits as its factorization.

15400938469247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52254720, while the sum is 62.

The spelling of 15400938469247 in words is "fifteen trillion, four hundred billion, nine hundred thirty-eight million, four hundred sixty-nine thousand, two hundred forty-seven".