6998162278 has 4 divisors (see below), whose sum is σ = 10497243420. Its totient is φ = 3499081138.

The previous prime is 6998162273. The next prime is 6998162279. The reversal of 6998162278 is 8722618996.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6998162273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1749540568 + ... + 1749540571.

It is an arithmetic number, because the mean of its divisors is an integer number (2624310855).

Almost surely, 2^6998162278 is an apocalyptic number.

6998162278 is a deficient number, since it is larger than the sum of its proper divisors (3499081142).

6998162278 is a wasteful number, since it uses less digits than its factorization.

6998162278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499081141.

The product of its digits is 5225472, while the sum is 58.

The square root of 6998162278 is about 83655.0194429480. The cubic root of 6998162278 is about 1912.7637664199.

The spelling of 6998162278 in words is "six billion, nine hundred ninety-eight million, one hundred sixty-two thousand, two hundred seventy-eight".