2159807852 has 6 divisors (see below), whose sum is σ = 3779663748. Its totient is φ = 1079903924.

The previous prime is 2159807849. The next prime is 2159807863. The reversal of 2159807852 is 2587089512.

It is a junction number, because it is equal to n+sod(n) for n = 2159807797 and 2159807806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269975978 + ... + 269975985.

It is an arithmetic number, because the mean of its divisors is an integer number (629943958).

Almost surely, 2^2159807852 is an apocalyptic number.

It is an amenable number.

2159807852 is a deficient number, since it is larger than the sum of its proper divisors (1619855896).

2159807852 is a wasteful number, since it uses less digits than its factorization.

2159807852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539951967 (or 539951965 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 47.

The square root of 2159807852 is about 46473.7329251697. The cubic root of 2159807852 is about 1292.6224822976.

The spelling of 2159807852 in words is "two billion, one hundred fifty-nine million, eight hundred seven thousand, eight hundred fifty-two".