15421421041 has 32 divisors (see below), whose sum is σ = 18541313280. Its totient is φ = 12687840000.

The previous prime is 15421421033. The next prime is 15421421051. The reversal of 15421421041 is 14012412451.

It is a cyclic number.

It is not a de Polignac number, because 15421421041 - 2³ = 15421421033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15421420997 and 15421421015.

It is not an unprimeable number, because it can be changed into a prime (15421421051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 324291 + ... + 368791.

It is an arithmetic number, because the mean of its divisors is an integer number (579416040).

Almost surely, 2^15421421041 is an apocalyptic number.

It is an amenable number.

15421421041 is a deficient number, since it is larger than the sum of its proper divisors (3119892239).

15421421041 is a wasteful number, since it uses less digits than its factorization.

15421421041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44617.

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 15421421041 its reverse (14012412451), we get a palindrome (29433833492).

The spelling of 15421421041 in words is "fifteen billion, four hundred twenty-one million, four hundred twenty-one thousand, forty-one".