6868215480 has 64 divisors (see below), whose sum is σ = 23548170240. Its totient is φ = 1569877632.

The previous prime is 6868215479. The next prime is 6868215481. The reversal of 6868215480 is 845128686.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6868215479) and next prime (6868215481).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6868215481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4087384 + ... + 4089063.

It is an arithmetic number, because the mean of its divisors is an integer number (367940160).

Almost surely, 2^6868215480 is an apocalyptic number.

6868215480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6868215480 is an abundant number, since it is smaller than the sum of its proper divisors (16679954760).

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

6868215480 is a wasteful number, since it uses less digits than its factorization.

6868215480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8176468 (or 8176464 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

The square root of 6868215480 is about 82874.6974655111. The cubic root of 6868215480 is about 1900.8505407104.

The spelling of 6868215480 in words is "six billion, eight hundred sixty-eight million, two hundred fifteen thousand, four hundred eighty".