6216911246477 has 2 divisors, whose sum is σ = 6216911246478. Its totient is φ = 6216911246476.

The previous prime is 6216911246467. The next prime is 6216911246521. The reversal of 6216911246477 is 7746421196126.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5108047489801 + 1108863756676 = 2260099^2 + 1053026^2 .

It is a cyclic number.

It is not a de Polignac number, because 6216911246477 - 2²² = 6216907052173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6216911246467) 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 as a sum of consecutive naturals, namely, 3108455623238 + 3108455623239.

It is an arithmetic number, because the mean of its divisors is an integer number (3108455623239).

Almost surely, 2^{6216911246477} is an apocalyptic number.

It is an amenable number.

6216911246477 is a deficient number, since it is larger than the sum of its proper divisors (1).

6216911246477 is an equidigital number, since it uses as much as digits as its factorization.

6216911246477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6096384, while the sum is 56.

The spelling of 6216911246477 in words is "six trillion, two hundred sixteen billion, nine hundred eleven million, two hundred forty-six thousand, four hundred seventy-seven".