15798445044 has 12 divisors (see below), whose sum is σ = 36863038464. Its totient is φ = 5266148344.

The previous prime is 15798445021. The next prime is 15798445073. The reversal of 15798445044 is 44054489751.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 658268532 + ... + 658268555.

It is an arithmetic number, because the mean of its divisors is an integer number (3071919872).

Almost surely, 2^15798445044 is an apocalyptic number.

It is an amenable number.

15798445044 is an abundant number, since it is smaller than the sum of its proper divisors (21064593420).

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

15798445044 is a wasteful number, since it uses less digits than its factorization.

15798445044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316537094 (or 1316537092 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 51.

The spelling of 15798445044 in words is "fifteen billion, seven hundred ninety-eight million, four hundred forty-five thousand, forty-four".