15853739028 has 48 divisors (see below), whose sum is σ = 39258737280. Its totient is φ = 4962207744.

The previous prime is 15853738997. The next prime is 15853739063. The reversal of 15853739028 is 82093735851.

It is a happy number.

15853739028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 1408 + ... + 178071.

It is an arithmetic number, because the mean of its divisors is an integer number (817890360).

Almost surely, 2^15853739028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15853739028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19629368640).

15853739028 is an abundant number, since it is smaller than the sum of its proper divisors (23404998252).

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

15853739028 is a wasteful number, since it uses less digits than its factorization.

15853739028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179936 (or 179934 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 15853739028 in words is "fifteen billion, eight hundred fifty-three million, seven hundred thirty-nine thousand, twenty-eight".