6533878195012 has 24 divisors (see below), whose sum is σ = 13068642625920. Its totient is φ = 2800043604480.

The previous prime is 6533878194997. The next prime is 6533878195073. The reversal of 6533878195012 is 2105918783356.

It is a happy number.

It is a super-2 number, since 2×6533878195012² (a number of 26 digits) contains 22 as substring.

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, 7492189 + ... + 8318692.

It is an arithmetic number, because the mean of its divisors is an integer number (544526776080).

Almost surely, 2^{6533878195012} is an apocalyptic number.

It is an amenable number.

6533878195012 is an abundant number, since it is smaller than the sum of its proper divisors (6534764430908).

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

6533878195012 is a wasteful number, since it uses less digits than its factorization.

6533878195012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15825651 (or 15825649 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 58.

The spelling of 6533878195012 in words is "six trillion, five hundred thirty-three billion, eight hundred seventy-eight million, one hundred ninety-five thousand, twelve".