15804040004 has 12 divisors (see below), whose sum is σ = 29283956604. Its totient is φ = 7437195264.

The previous prime is 15804039991. The next prime is 15804040051. The reversal of 15804040004 is 40004040851.

It can be written as a sum of positive squares in 2 ways, for example, as 4303622404 + 11500417600 = 65602^2 + 107240^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116206109 + ... + 116206244.

It is an arithmetic number, because the mean of its divisors is an integer number (2440329717).

Almost surely, 2^15804040004 is an apocalyptic number.

It is an amenable number.

15804040004 is a deficient number, since it is larger than the sum of its proper divisors (13479916600).

15804040004 is a wasteful number, since it uses less digits than its factorization.

15804040004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232412374 (or 232412372 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 15804040004 its reverse (40004040851), we get a palindrome (55808080855).

The spelling of 15804040004 in words is "fifteen billion, eight hundred four million, forty thousand, four".