6216002981 has 2 divisors, whose sum is σ = 6216002982. Its totient is φ = 6216002980.

The previous prime is 6216002959. The next prime is 6216002983. The reversal of 6216002981 is 1892006126.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5590552900 + 625450081 = 74770^2 + 25009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6216002981 is a prime.

It is a super-2 number, since 2×6216002981² = 77277386119601772722, which contains 22 as substring.

Together with 6216002983, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6216002983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3108001490 + 3108001491.

It is an arithmetic number, because the mean of its divisors is an integer number (3108001491).

Almost surely, 2^6216002981 is an apocalyptic number.

It is an amenable number.

6216002981 is a deficient number, since it is larger than the sum of its proper divisors (1).

6216002981 is an equidigital number, since it uses as much as digits as its factorization.

6216002981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 6216002981 is about 78841.6322826969. The cubic root of 6216002981 is about 1838.6697794371.

The spelling of 6216002981 in words is "six billion, two hundred sixteen million, two thousand, nine hundred eighty-one".