6870420544 has 63 divisors (see below), whose sum is σ = 14781438687. Its totient is φ = 3166984704.

The previous prime is 6870420527. The next prime is 6870420559. The reversal of 6870420544 is 4450240786.

It is a happy number.

The square root of 6870420544 is 82888.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1070074944 + 5800345600 = 32712^2 + 76160^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6870420497 and 6870420506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8619954 + ... + 8620750.

Almost surely, 2^6870420544 is an apocalyptic number.

6870420544 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

6870420544 is the 82888-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6870420544

6870420544 is an abundant number, since it is smaller than the sum of its proper divisors (7911018143).

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

6870420544 is an frugal number, since it uses more digits than its factorization.

6870420544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 40.

The cubic root of 6870420544 is about 1901.0539437935.

The spelling of 6870420544 in words is "six billion, eight hundred seventy million, four hundred twenty thousand, five hundred forty-four".