6651924879 has 8 divisors (see below), whose sum is σ = 8871170992. Its totient is φ = 4433647680.

The previous prime is 6651924869. The next prime is 6651924919. The reversal of 6651924879 is 9784291566.

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

It is not a de Polignac number, because 6651924879 - 2⁸ = 6651924623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6651924809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226054 + ... + 253779.

It is an arithmetic number, because the mean of its divisors is an integer number (1108896374).

Almost surely, 2^6651924879 is an apocalyptic number.

6651924879 is a deficient number, since it is larger than the sum of its proper divisors (2219246113).

6651924879 is a wasteful number, since it uses less digits than its factorization.

6651924879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484457.

The product of its digits is 6531840, while the sum is 57.

The square root of 6651924879 is about 81559.3334879583. Note that the first 3 decimals coincide. The cubic root of 6651924879 is about 1880.6837786404.

The spelling of 6651924879 in words is "six billion, six hundred fifty-one million, nine hundred twenty-four thousand, eight hundred seventy-nine".