6542788806 has 12 divisors (see below), whose sum is σ = 14176042452. Its totient is φ = 2180929596.

The previous prime is 6542788799. The next prime is 6542788829. The reversal of 6542788806 is 6088872456.

6542788806 is a `hidden beast` number, since 65 + 427 + 88 + 80 + 6 = 666.

It is a super-3 number, since 3×6542788806³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 181744116 + ... + 181744151.

It is an arithmetic number, because the mean of its divisors is an integer number (1181336871).

Almost surely, 2^6542788806 is an apocalyptic number.

6542788806 is an abundant number, since it is smaller than the sum of its proper divisors (7633253646).

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

6542788806 is a wasteful number, since it uses less digits than its factorization.

6542788806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363488275 (or 363488272 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The square root of 6542788806 is about 80887.5071070929. The cubic root of 6542788806 is about 1870.3417456192.

The spelling of 6542788806 in words is "six billion, five hundred forty-two million, seven hundred eighty-eight thousand, eight hundred six".