15242440410405 has 64 divisors (see below), whose sum is σ = 29275342763520. Its totient is φ = 7479996046848.

The previous prime is 15242440410403. The next prime is 15242440410479. The reversal of 15242440410405 is 50401404424251.

15242440410405 is a `hidden beast` number, since 1 + 5 + 2 + 4 + 244 + 0 + 4 + 1 + 0 + 405 = 666.

It is not a de Polignac number, because 15242440410405 - 2¹ = 15242440410403 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15242440410405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15242440410403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13324729 + ... + 14423358.

It is an arithmetic number, because the mean of its divisors is an integer number (457427230680).

Almost surely, 2^{15242440410405} is an apocalyptic number.

15242440410405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15242440410405 is a deficient number, since it is larger than the sum of its proper divisors (14032902353115).

15242440410405 is a wasteful number, since it uses less digits than its factorization.

15242440410405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27748427 (or 27748421 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 36.

Adding to 15242440410405 its reverse (50401404424251), we get a palindrome (65643844834656).

The spelling of 15242440410405 in words is "fifteen trillion, two hundred forty-two billion, four hundred forty million, four hundred ten thousand, four hundred five".