15342405440012 has 48 divisors (see below), whose sum is σ = 31662660794688. Its totient is φ = 6368118574080.

The previous prime is 15342405439993. The next prime is 15342405440017. The reversal of 15342405440012 is 21004450424351.

It is a happy number.

It is a super-2 number, since 2×15342405440012² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15342405440017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48618143 + ... + 48932694.

It is an arithmetic number, because the mean of its divisors is an integer number (659638766556).

Almost surely, 2^{15342405440012} is an apocalyptic number.

It is an amenable number.

15342405440012 is an abundant number, since it is smaller than the sum of its proper divisors (16320255354676).

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

15342405440012 is a wasteful number, since it uses less digits than its factorization.

15342405440012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97551026 (or 97551024 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 15342405440012 its reverse (21004450424351), we get a palindrome (36346855864363).

The spelling of 15342405440012 in words is "fifteen trillion, three hundred forty-two billion, four hundred five million, four hundred forty thousand, twelve".