6801570820 has 24 divisors (see below), whose sum is σ = 15581780928. Its totient is φ = 2473298400.

The previous prime is 6801570793. The next prime is 6801570857. The reversal of 6801570820 is 280751086.

It is a super-2 number, since 2×6801570820² = 92522731238950944800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6801570820.

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, 15457896 + ... + 15458335.

It is an arithmetic number, because the mean of its divisors is an integer number (649240872).

Almost surely, 2^6801570820 is an apocalyptic number.

It is an amenable number.

6801570820 is an abundant number, since it is smaller than the sum of its proper divisors (8780210108).

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

6801570820 is a wasteful number, since it uses less digits than its factorization.

6801570820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30916251 (or 30916249 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 6801570820 is about 82471.6364576331. The cubic root of 6801570820 is about 1894.6823443062.

The spelling of 6801570820 in words is "six billion, eight hundred one million, five hundred seventy thousand, eight hundred twenty".