6218979983 has 2 divisors, whose sum is σ = 6218979984. Its totient is φ = 6218979982.

The previous prime is 6218979979. The next prime is 6218980007. The reversal of 6218979983 is 3899798126.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6218979983 - 2² = 6218979979 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6218979383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3109489991 + 3109489992.

It is an arithmetic number, because the mean of its divisors is an integer number (3109489992).

Almost surely, 2^6218979983 is an apocalyptic number.

6218979983 is a deficient number, since it is larger than the sum of its proper divisors (1).

6218979983 is an equidigital number, since it uses as much as digits as its factorization.

6218979983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11757312, while the sum is 62.

The square root of 6218979983 is about 78860.5096547061. The cubic root of 6218979983 is about 1838.9632611715.

The spelling of 6218979983 in words is "six billion, two hundred eighteen million, nine hundred seventy-nine thousand, nine hundred eighty-three".