2081783963952 has 400 divisors, whose sum is σ = 7522477459200. Its totient is φ = 539972282880.

The previous prime is 2081783963921. The next prime is 2081783963981. The reversal of 2081783963952 is 2593693871802.

2081783963952 is a `hidden beast` number, since 2 + 0 + 81 + 7 + 83 + 96 + 395 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 2081783963952.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 73732174 + ... + 73760402.

It is an arithmetic number, because the mean of its divisors is an integer number (18806193648).

Almost surely, 2^{2081783963952} is an apocalyptic number.

2081783963952 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2081783963952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3761238729600).

2081783963952 is an abundant number, since it is smaller than the sum of its proper divisors (5440693495248).

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

2081783963952 is a wasteful number, since it uses less digits than its factorization.

2081783963952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29006 (or 28991 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 2081783963952 in words is "two trillion, eighty-one billion, seven hundred eighty-three million, nine hundred sixty-three thousand, nine hundred fifty-two".