6218666928 has 60 divisors (see below), whose sum is σ = 17452253520. Its totient is φ = 2067097728.

The previous prime is 6218666911. The next prime is 6218666933. The reversal of 6218666928 is 8296668126.

It is a happy number.

It is a super-2 number, since 2×6218666928² = 77343636722801914368, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8451 + ... + 111842.

It is an arithmetic number, because the mean of its divisors is an integer number (290870892).

Almost surely, 2^6218666928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6218666928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8726126760).

6218666928 is an abundant number, since it is smaller than the sum of its proper divisors (11233586592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6218666928 is a wasteful number, since it uses less digits than its factorization.

6218666928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120666 (or 120657 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 6218666928 is about 78858.5247642891. The cubic root of 6218666928 is about 1838.9324036834.

The spelling of 6218666928 in words is "six billion, two hundred eighteen million, six hundred sixty-six thousand, nine hundred twenty-eight".