15654442434 has 32 divisors (see below), whose sum is σ = 32632664064. Its totient is φ = 5000786640.

The previous prime is 15654442417. The next prime is 15654442439. The reversal of 15654442434 is 43424445651.

15654442434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (15654442439) 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 15 ways as a sum of consecutive naturals, for example, 389404 + ... + 427719.

It is an arithmetic number, because the mean of its divisors is an integer number (1019770752).

Almost surely, 2^15654442434 is an apocalyptic number.

15654442434 is an abundant number, since it is smaller than the sum of its proper divisors (16978221630).

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

15654442434 is a wasteful number, since it uses less digits than its factorization.

15654442434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817262.

The product of its digits is 921600, while the sum is 42.

The spelling of 15654442434 in words is "fifteen billion, six hundred fifty-four million, four hundred forty-two thousand, four hundred thirty-four".