6810020536 has 16 divisors (see below), whose sum is σ = 13929587640. Its totient is φ = 3095463840.

The previous prime is 6810020513. The next prime is 6810020551. The reversal of 6810020536 is 6350200186.

It is a junction number, because it is equal to n+sod(n) for n = 6810020498 and 6810020507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38693211 + ... + 38693386.

Almost surely, 2^6810020536 is an apocalyptic number.

It is an amenable number.

6810020536 is an abundant number, since it is smaller than the sum of its proper divisors (7119567104).

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

6810020536 is a wasteful number, since it uses less digits than its factorization.

6810020536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77386614 (or 77386610 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 6810020536 is about 82522.8485693508. The cubic root of 6810020536 is about 1895.4666191486.

The spelling of 6810020536 in words is "six billion, eight hundred ten million, twenty thousand, five hundred thirty-six".