2041981974864 has 160 divisors (see below), whose sum is σ = 6345160550400. Its totient is φ = 625012277760.

The previous prime is 2041981974841. The next prime is 2041981974887. The reversal of 2041981974864 is 4684791891402.

2041981974864 is a `hidden beast` number, since 20 + 41 + 9 + 8 + 1 + 97 + 486 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (2041981974841) and next prime (2041981974887).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120822 + ... + 2024490.

It is an arithmetic number, because the mean of its divisors is an integer number (39657253440).

Almost surely, 2^{2041981974864} is an apocalyptic number.

2041981974864 is a gapful number since it is divisible by the number (24) 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 2041981974864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3172580275200).

2041981974864 is an abundant number, since it is smaller than the sum of its proper divisors (4303178575536).

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

2041981974864 is a wasteful number, since it uses less digits than its factorization.

2041981974864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903890 (or 1903878 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 63.

The spelling of 2041981974864 in words is "two trillion, forty-one billion, nine hundred eighty-one million, nine hundred seventy-four thousand, eight hundred sixty-four".