15321340463442 has 16 divisors (see below), whose sum is σ = 32999810229120. Its totient is φ = 4714258604112.

The previous prime is 15321340463441. The next prime is 15321340463453. The reversal of 15321340463442 is 24436404312351.

It is a junction number, because it is equal to n+sod(n) for n = 15321340463394 and 15321340463403.

It is not an unprimeable number, because it can be changed into a prime (15321340463441) 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 7 ways as a sum of consecutive naturals, for example, 98213720842 + ... + 98213720997.

It is an arithmetic number, because the mean of its divisors is an integer number (2062488139320).

Almost surely, 2^{15321340463442} is an apocalyptic number.

15321340463442 is an abundant number, since it is smaller than the sum of its proper divisors (17678469765678).

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

15321340463442 is a wasteful number, since it uses less digits than its factorization.

15321340463442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196427441857.

The product of its (nonzero) digits is 829440, while the sum is 42.

Adding to 15321340463442 its reverse (24436404312351), we get a palindrome (39757744775793).

The spelling of 15321340463442 in words is "fifteen trillion, three hundred twenty-one billion, three hundred forty million, four hundred sixty-three thousand, four hundred forty-two".