15803494072 has 8 divisors (see below), whose sum is σ = 29631551400. Its totient is φ = 7901747032.

The previous prime is 15803494037. The next prime is 15803494099. The reversal of 15803494072 is 27049430851.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987718372 + ... + 987718387.

It is an arithmetic number, because the mean of its divisors is an integer number (3703943925).

Almost surely, 2^15803494072 is an apocalyptic number.

It is an amenable number.

15803494072 is a deficient number, since it is larger than the sum of its proper divisors (13828057328).

15803494072 is a wasteful number, since it uses less digits than its factorization.

15803494072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975436765 (or 1975436761 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 15803494072 in words is "fifteen billion, eight hundred three million, four hundred ninety-four thousand, seventy-two".