15849230820 has 24 divisors (see below), whose sum is σ = 44377846464. Its totient is φ = 4226461536.

The previous prime is 15849230807. The next prime is 15849230843. The reversal of 15849230820 is 2803294851.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132076864 + ... + 132076983.

It is an arithmetic number, because the mean of its divisors is an integer number (1849076936).

Almost surely, 2^15849230820 is an apocalyptic number.

15849230820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15849230820 is an abundant number, since it is smaller than the sum of its proper divisors (28528615644).

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

15849230820 is a wasteful number, since it uses less digits than its factorization.

15849230820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264153859 (or 264153857 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 15849230820 in words is "fifteen billion, eight hundred forty-nine million, two hundred thirty thousand, eight hundred twenty".