6976945866 has 32 divisors (see below), whose sum is σ = 15225735168. Its totient is φ = 2113766640.

The previous prime is 6976945849. The next prime is 6976945867. The reversal of 6976945866 is 6685496796.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 6976945797 and 6976945806.

It is not an unprimeable number, because it can be changed into a prime (6976945867) 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 in 15 ways as a sum of consecutive naturals, for example, 411921 + ... + 428523.

It is an arithmetic number, because the mean of its divisors is an integer number (475804224).

Almost surely, 2^6976945866 is an apocalyptic number.

6976945866 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6976945866 is an abundant number, since it is smaller than the sum of its proper divisors (8248789302).

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

6976945866 is a wasteful number, since it uses less digits than its factorization.

6976945866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22986.

The product of its digits is 117573120, while the sum is 66.

The square root of 6976945866 is about 83528.1142250919. The cubic root of 6976945866 is about 1910.8288268034.

The spelling of 6976945866 in words is "six billion, nine hundred seventy-six million, nine hundred forty-five thousand, eight hundred sixty-six".