6268780816 has 20 divisors (see below), whose sum is σ = 12537562624. Its totient is φ = 3033280800.

The previous prime is 6268780811. The next prime is 6268780823. The reversal of 6268780816 is 6180878626.

6268780816 is an admirable number.

It is a super-2 number, since 2×6268780816² = 78595225838099251712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6268780811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6318840 + ... + 6319831.

Almost surely, 2^6268780816 is an apocalyptic number.

It is an amenable number.

6268780816 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6268780816 is a wasteful number, since it uses less digits than its factorization.

6268780816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12638710 (or 12638704 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 52.

The square root of 6268780816 is about 79175.6327161331. The cubic root of 6268780816 is about 1843.8589474628.

The spelling of 6268780816 in words is "six billion, two hundred sixty-eight million, seven hundred eighty thousand, eight hundred sixteen".