6227378861 has 24 divisors (see below), whose sum is σ = 6970131000. Its totient is φ = 5558643200.

The previous prime is 6227378821. The next prime is 6227378873. The reversal of 6227378861 is 1688737226.

It can be written as a sum of positive squares in 4 ways, for example, as 34633225 + 6192745636 = 5885^2 + 78694^2 .

It is not a de Polignac number, because 6227378861 - 2²² = 6223184557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6227378821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1602641 + ... + 1606521.

It is an arithmetic number, because the mean of its divisors is an integer number (290422125).

Almost surely, 2^6227378861 is an apocalyptic number.

It is an amenable number.

6227378861 is a deficient number, since it is larger than the sum of its proper divisors (742752139).

6227378861 is a wasteful number, since it uses less digits than its factorization.

6227378861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4141 (or 4130 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 50.

The square root of 6227378861 is about 78913.7431693618. The cubic root of 6227378861 is about 1839.7907430782.

The spelling of 6227378861 in words is "six billion, two hundred twenty-seven million, three hundred seventy-eight thousand, eight hundred sixty-one".