2081963956 has 48 divisors (see below), whose sum is σ = 4082400000. Its totient is φ = 923901440.

The previous prime is 2081963953. The next prime is 2081963957. The reversal of 2081963956 is 6593691802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081963951) by changing a digit.

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, 101670 + ... + 120418.

It is an arithmetic number, because the mean of its divisors is an integer number (85050000).

Almost surely, 2^2081963956 is an apocalyptic number.

It is an amenable number.

2081963956 is a deficient number, since it is larger than the sum of its proper divisors (2000436044).

2081963956 is a wasteful number, since it uses less digits than its factorization.

2081963956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18864 (or 18862 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 49.

The square root of 2081963956 is about 45628.5432158424. The cubic root of 2081963956 is about 1276.9024948512.

The spelling of 2081963956 in words is "two billion, eighty-one million, nine hundred sixty-three thousand, nine hundred fifty-six".