6216631013 has 2 divisors, whose sum is σ = 6216631014. Its totient is φ = 6216631012.

The previous prime is 6216631007. The next prime is 6216631019. The reversal of 6216631013 is 3101366126.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (6216631007) and next prime (6216631019).

It can be written as a sum of positive squares in only one way, i.e., 6084312004 + 132319009 = 78002^2 + 11503^2 .

It is a cyclic number.

It is not a de Polignac number, because 6216631013 - 2⁴ = 6216630997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6216631019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3108315506 + 3108315507.

It is an arithmetic number, because the mean of its divisors is an integer number (3108315507).

Almost surely, 2^6216631013 is an apocalyptic number.

It is an amenable number.

6216631013 is a deficient number, since it is larger than the sum of its proper divisors (1).

6216631013 is an equidigital number, since it uses as much as digits as its factorization.

6216631013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 6216631013 is about 78845.6150524555. The cubic root of 6216631013 is about 1838.7317005020.

Adding to 6216631013 its reverse (3101366126), we get a palindrome (9317997139).

The spelling of 6216631013 in words is "six billion, two hundred sixteen million, six hundred thirty-one thousand, thirteen".