6218879493 has 12 divisors (see below), whose sum is σ = 8751222528. Its totient is φ = 3927712680.

The previous prime is 6218879479. The next prime is 6218879519. The reversal of 6218879493 is 3949788126.

It is not a de Polignac number, because 6218879493 - 2⁴ = 6218879477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6218879453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2870053 + ... + 2872218.

It is an arithmetic number, because the mean of its divisors is an integer number (729268544).

Almost surely, 2^6218879493 is an apocalyptic number.

It is an amenable number.

6218879493 is a deficient number, since it is larger than the sum of its proper divisors (2532343035).

6218879493 is a wasteful number, since it uses less digits than its factorization.

6218879493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5742312 (or 5742293 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 57.

The square root of 6218879493 is about 78859.8725144798. The cubic root of 6218879493 is about 1838.9533560953.

The spelling of 6218879493 in words is "six billion, two hundred eighteen million, eight hundred seventy-nine thousand, four hundred ninety-three".