15454503421 has 24 divisors (see below), whose sum is σ = 18177765120. Its totient is φ = 13099830912.

The previous prime is 15454503409. The next prime is 15454503431. The reversal of 15454503421 is 12430545451.

15454503421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15454503421 - 2⁹ = 15454502909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15454503431) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2649310 + ... + 2655136.

It is an arithmetic number, because the mean of its divisors is an integer number (757406880).

Almost surely, 2^15454503421 is an apocalyptic number.

It is an amenable number.

15454503421 is a deficient number, since it is larger than the sum of its proper divisors (2723261699).

15454503421 is a wasteful number, since it uses less digits than its factorization.

15454503421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6433 (or 6426 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 15454503421 in words is "fifteen billion, four hundred fifty-four million, five hundred three thousand, four hundred twenty-one".