15404540506 has 8 divisors (see below), whose sum is σ = 23111355924. Its totient is φ = 7700755200.

The previous prime is 15404540483. The next prime is 15404540509. The reversal of 15404540506 is 60504540451.

15404540506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10590262281 + 4814278225 = 102909^2 + 69385^2 .

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

It is not an unprimeable number, because it can be changed into a prime (15404540509) 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 3 ways as a sum of consecutive naturals, for example, 744775 + ... + 765178.

Almost surely, 2^15404540506 is an apocalyptic number.

15404540506 is a deficient number, since it is larger than the sum of its proper divisors (7706815418).

15404540506 is a wasteful number, since it uses less digits than its factorization.

15404540506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515056.

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

The spelling of 15404540506 in words is "fifteen billion, four hundred four million, five hundred forty thousand, five hundred six".