3005005052981 has 4 divisors (see below), whose sum is σ = 3068941330752. Its totient is φ = 2941068775212.

The previous prime is 3005005052893. The next prime is 3005005053047. The reversal of 3005005052981 is 1892505005003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3005005052981 is a prime.

It is a super-2 number, since 2×3005005052981² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3005005051981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31968138815 + ... + 31968138908.

It is an arithmetic number, because the mean of its divisors is an integer number (767235332688).

Almost surely, 2^{3005005052981} is an apocalyptic number.

It is an amenable number.

3005005052981 is a deficient number, since it is larger than the sum of its proper divisors (63936277771).

3005005052981 is an equidigital number, since it uses as much as digits as its factorization.

3005005052981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63936277770.

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 3005005052981 in words is "three trillion, five billion, five million, fifty-two thousand, nine hundred eighty-one".