6819462820 has 24 divisors (see below), whose sum is σ = 14323579704. Its totient is φ = 2727269376.

The previous prime is 6819462803. The next prime is 6819462857. The reversal of 6819462820 is 282649186.

It can be written as a sum of positive squares in 4 ways, for example, as 2932439104 + 3887023716 = 54152^2 + 62346^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86932 + ... + 145588.

It is an arithmetic number, because the mean of its divisors is an integer number (596815821).

Almost surely, 2^6819462820 is an apocalyptic number.

It is an amenable number.

6819462820 is an abundant number, since it is smaller than the sum of its proper divisors (7504116884).

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

6819462820 is a wasteful number, since it uses less digits than its factorization.

6819462820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64479 (or 64477 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 6819462820 is about 82580.0388713883. The cubic root of 6819462820 is about 1896.3422537418.

The spelling of 6819462820 in words is "six billion, eight hundred nineteen million, four hundred sixty-two thousand, eight hundred twenty".