15404042441244 has 12 divisors (see below), whose sum is σ = 35942765696264. Its totient is φ = 5134680813744.

The previous prime is 15404042441231. The next prime is 15404042441299. The reversal of 15404042441244 is 44214424040451.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×15404042441244² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641835101707 + ... + 641835101730.

Almost surely, 2^{15404042441244} is an apocalyptic number.

It is an amenable number.

15404042441244 is an abundant number, since it is smaller than the sum of its proper divisors (20538723255020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15404042441244 is a wasteful number, since it uses less digits than its factorization.

15404042441244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283670203444 (or 1283670203442 counting only the distinct ones).

The product of its (nonzero) digits is 327680, while the sum is 39.

Adding to 15404042441244 its reverse (44214424040451), we get a palindrome (59618466481695).

The spelling of 15404042441244 in words is "fifteen trillion, four hundred four billion, forty-two million, four hundred forty-one thousand, two hundred forty-four".