15853969830 has 16 divisors (see below), whose sum is σ = 38049527664. Its totient is φ = 4227725280.

The previous prime is 15853969819. The next prime is 15853969853. The reversal of 15853969830 is 3896935851.

15853969830 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 264232801 + ... + 264232860.

It is an arithmetic number, because the mean of its divisors is an integer number (2378095479).

Almost surely, 2^15853969830 is an apocalyptic number.

15853969830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15853969830 is an abundant number, since it is smaller than the sum of its proper divisors (22195557834).

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

15853969830 is a wasteful number, since it uses less digits than its factorization.

15853969830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528465671.

The product of its (nonzero) digits is 6998400, while the sum is 57.

The spelling of 15853969830 in words is "fifteen billion, eight hundred fifty-three million, nine hundred sixty-nine thousand, eight hundred thirty".