15541421342 has 8 divisors (see below), whose sum is σ = 23325435696. Its totient is φ = 7766276112.

The previous prime is 15541421251. The next prime is 15541421351. The reversal of 15541421342 is 24312414551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 15541421299 and 15541421308.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2212898 + ... + 2219909.

It is an arithmetic number, because the mean of its divisors is an integer number (2915679462).

Almost surely, 2^15541421342 is an apocalyptic number.

15541421342 is a deficient number, since it is larger than the sum of its proper divisors (7784014354).

15541421342 is a wasteful number, since it uses less digits than its factorization.

15541421342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434562.

The product of its digits is 19200, while the sum is 32.

Adding to 15541421342 its reverse (24312414551), we get a palindrome (39853835893).

The spelling of 15541421342 in words is "fifteen billion, five hundred forty-one million, four hundred twenty-one thousand, three hundred forty-two".