15804849522 has 64 divisors (see below), whose sum is σ = 39459861504. Its totient is φ = 4099909440.

The previous prime is 15804849517. The next prime is 15804849569. The reversal of 15804849522 is 22594840851.

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 31 ways as a sum of consecutive naturals, for example, 346753 + ... + 389675.

It is an arithmetic number, because the mean of its divisors is an integer number (616560336).

Almost surely, 2^15804849522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15804849522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19729930752).

15804849522 is an abundant number, since it is smaller than the sum of its proper divisors (23655011982).

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

15804849522 is a wasteful number, since it uses less digits than its factorization.

15804849522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43743.

The product of its (nonzero) digits is 921600, while the sum is 48.

The spelling of 15804849522 in words is "fifteen billion, eight hundred four million, eight hundred forty-nine thousand, five hundred twenty-two".