15853734993 has 16 divisors (see below), whose sum is σ = 22039418880. Its totient is φ = 10124343936.

The previous prime is 15853734991. The next prime is 15853735031. The reversal of 15853734993 is 39943735851.

15853734993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15853734993 - 2¹ = 15853734991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15853734991) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 706380 + ... + 728477.

It is an arithmetic number, because the mean of its divisors is an integer number (1377463680).

Almost surely, 2^15853734993 is an apocalyptic number.

It is an amenable number.

15853734993 is a deficient number, since it is larger than the sum of its proper divisors (6185683887).

15853734993 is a wasteful number, since it uses less digits than its factorization.

15853734993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435016.

The product of its digits is 12247200, while the sum is 57.

The spelling of 15853734993 in words is "fifteen billion, eight hundred fifty-three million, seven hundred thirty-four thousand, nine hundred ninety-three".