6533007878 has 4 divisors (see below), whose sum is σ = 9799511820. Its totient is φ = 3266503938.

The previous prime is 6533007863. The next prime is 6533007917. The reversal of 6533007878 is 8787003356.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1633251968 + ... + 1633251971.

It is an arithmetic number, because the mean of its divisors is an integer number (2449877955).

Almost surely, 2^6533007878 is an apocalyptic number.

6533007878 is a deficient number, since it is larger than the sum of its proper divisors (3266503942).

6533007878 is a wasteful number, since it uses less digits than its factorization.

6533007878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3266503941.

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 6533007878 is about 80827.0244287144. The cubic root of 6533007878 is about 1869.4092787505.

The spelling of 6533007878 in words is "six billion, five hundred thirty-three million, seven thousand, eight hundred seventy-eight".