6798445678 has 4 divisors (see below), whose sum is σ = 10197668520. Its totient is φ = 3399222838.

The previous prime is 6798445657. The next prime is 6798445711. The reversal of 6798445678 is 8765448976.

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, 1699611418 + ... + 1699611421.

It is an arithmetic number, because the mean of its divisors is an integer number (2549417130).

Almost surely, 2^6798445678 is an apocalyptic number.

6798445678 is a deficient number, since it is larger than the sum of its proper divisors (3399222842).

6798445678 is a wasteful number, since it uses less digits than its factorization.

6798445678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399222841.

The product of its digits is 81285120, while the sum is 64.

The square root of 6798445678 is about 82452.6875122940. The cubic root of 6798445678 is about 1894.3921143662.

The spelling of 6798445678 in words is "six billion, seven hundred ninety-eight million, four hundred forty-five thousand, six hundred seventy-eight".