6642075827 has 8 divisors (see below), whose sum is σ = 6729439392. Its totient is φ = 6555136000.

The previous prime is 6642075823. The next prime is 6642075877. The reversal of 6642075827 is 7285702466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6642075827 - 2² = 6642075823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6642075823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74318 + ... + 137139.

It is an arithmetic number, because the mean of its divisors is an integer number (841179924).

Almost surely, 2^6642075827 is an apocalyptic number.

6642075827 is a deficient number, since it is larger than the sum of its proper divisors (87363565).

6642075827 is a wasteful number, since it uses less digits than its factorization.

6642075827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211869.

The product of its (nonzero) digits is 1128960, while the sum is 47.

The square root of 6642075827 is about 81498.9314469828. The cubic root of 6642075827 is about 1879.7551200397.

The spelling of 6642075827 in words is "six billion, six hundred forty-two million, seventy-five thousand, eight hundred twenty-seven".