15204135432 has 16 divisors (see below), whose sum is σ = 38010338640. Its totient is φ = 5068045136.

The previous prime is 15204135413. The next prime is 15204135481. The reversal of 15204135432 is 23453140251.

It is a self number, because there is not a number n which added to its sum of digits gives 15204135432.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316752798 + ... + 316752845.

It is an arithmetic number, because the mean of its divisors is an integer number (2375646165).

Almost surely, 2^15204135432 is an apocalyptic number.

15204135432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15204135432 is an abundant number, since it is smaller than the sum of its proper divisors (22806203208).

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

15204135432 is a wasteful number, since it uses less digits than its factorization.

15204135432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633505652 (or 633505648 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 15204135432 its reverse (23453140251), we get a palindrome (38657275683).

The spelling of 15204135432 in words is "fifteen billion, two hundred four million, one hundred thirty-five thousand, four hundred thirty-two".