2159983823 has 2 divisors, whose sum is σ = 2159983824. Its totient is φ = 2159983822.

The previous prime is 2159983801. The next prime is 2159983877. The reversal of 2159983823 is 3283899512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2159983823 - 2¹⁶ = 2159918287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2159983223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1079991911 + 1079991912.

It is an arithmetic number, because the mean of its divisors is an integer number (1079991912).

Almost surely, 2^2159983823 is an apocalyptic number.

2159983823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2159983823 is an equidigital number, since it uses as much as digits as its factorization.

2159983823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 50.

The square root of 2159983823 is about 46475.6261173532. The cubic root of 2159983823 is about 1292.6575869472.

The spelling of 2159983823 in words is "two billion, one hundred fifty-nine million, nine hundred eighty-three thousand, eight hundred twenty-three".