6815808189952 has 40 divisors (see below), whose sum is σ = 13625058081096. Its totient is φ = 3406213988352.

The previous prime is 6815808189947. The next prime is 6815808189961. The reversal of 6815808189952 is 2599818085186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2267278 + ... + 4332685.

Almost surely, 2^{6815808189952} is an apocalyptic number.

It is an amenable number.

6815808189952 is a deficient number, since it is larger than the sum of its proper divisors (6809249891144).

6815808189952 is an equidigital number, since it uses as much as digits as its factorization.

6815808189952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6601998 (or 6601982 counting only the distinct ones).

The product of its (nonzero) digits is 99532800, while the sum is 70.

The spelling of 6815808189952 in words is "six trillion, eight hundred fifteen billion, eight hundred eight million, one hundred eighty-nine thousand, nine hundred fifty-two".