2981761056 has 72 divisors (see below), whose sum is σ = 8581613040. Its totient is φ = 981937536.

The previous prime is 2981761051. The next prime is 2981761061. The reversal of 2981761056 is 6501671892.

2981761056 is a `hidden beast` number, since 29 + 8 + 1 + 7 + 610 + 5 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (2981761051) and next prime (2981761061).

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (2981761051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38466 + ... + 86273.

It is an arithmetic number, because the mean of its divisors is an integer number (119189070).

Almost surely, 2^2981761056 is an apocalyptic number.

It is an amenable number.

2981761056 is an abundant number, since it is smaller than the sum of its proper divisors (5599851984).

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

2981761056 is a wasteful number, since it uses less digits than its factorization.

2981761056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124838 (or 124827 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 2981761056 is about 54605.5038984167. The cubic root of 2981761056 is about 1439.3208371368.

The spelling of 2981761056 in words is "two billion, nine hundred eighty-one million, seven hundred sixty-one thousand, fifty-six".