6641948798 has 4 divisors (see below), whose sum is σ = 9962923200. Its totient is φ = 3320974398.

The previous prime is 6641948783. The next prime is 6641948801. The reversal of 6641948798 is 8978491466.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6641948798.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1660487198 + ... + 1660487201.

It is an arithmetic number, because the mean of its divisors is an integer number (2490730800).

Almost surely, 2^6641948798 is an apocalyptic number.

6641948798 is a deficient number, since it is larger than the sum of its proper divisors (3320974402).

6641948798 is a wasteful number, since it uses less digits than its factorization.

6641948798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3320974401.

The product of its digits is 20901888, while the sum is 62.

The square root of 6641948798 is about 81498.1521140204. The cubic root of 6641948798 is about 1879.7431365905.

The spelling of 6641948798 in words is "six billion, six hundred forty-one million, nine hundred forty-eight thousand, seven hundred ninety-eight".