3005013502781 has 4 divisors (see below), whose sum is σ = 3061711870812. Its totient is φ = 2948315134752.

The previous prime is 3005013502741. The next prime is 3005013502789. The reversal of 3005013502781 is 1872053105003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 994076797156 + 2010936705625 = 997034^2 + 1418075^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3005013502781 is a prime.

It is a super-2 number, since 2×3005013502781² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3005013502789) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28349183936 + ... + 28349184041.

It is an arithmetic number, because the mean of its divisors is an integer number (765427967703).

Almost surely, 2^{3005013502781} is an apocalyptic number.

It is an amenable number.

3005013502781 is a deficient number, since it is larger than the sum of its proper divisors (56698368031).

3005013502781 is an equidigital number, since it uses as much as digits as its factorization.

3005013502781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56698368030.

The product of its (nonzero) digits is 25200, while the sum is 35.

Adding to 3005013502781 its reverse (1872053105003), we get a palindrome (4877066607784).

The spelling of 3005013502781 in words is "three trillion, five billion, thirteen million, five hundred two thousand, seven hundred eighty-one".