15994053772 has 6 divisors (see below), whose sum is σ = 27989594108. Its totient is φ = 7997026884.

The previous prime is 15994053767. The next prime is 15994053847. The reversal of 15994053772 is 27735049951.

15994053772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1999256718 + ... + 1999256725.

Almost surely, 2^15994053772 is an apocalyptic number.

It is an amenable number.

15994053772 is a deficient number, since it is larger than the sum of its proper divisors (11995540336).

15994053772 is a wasteful number, since it uses less digits than its factorization.

15994053772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3998513447 (or 3998513445 counting only the distinct ones).

The product of its (nonzero) digits is 2381400, while the sum is 52.

The spelling of 15994053772 in words is "fifteen billion, nine hundred ninety-four million, fifty-three thousand, seven hundred seventy-two".