6698879735 has 4 divisors (see below), whose sum is σ = 8038655688. Its totient is φ = 5359103784.

The previous prime is 6698879729. The next prime is 6698879791. The reversal of 6698879735 is 5379788966.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5379788966 = 2 ⋅2689894483.

It is a cyclic number.

It is not a de Polignac number, because 6698879735 - 2¹² = 6698875639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 669887969 + ... + 669887978.

It is an arithmetic number, because the mean of its divisors is an integer number (2009663922).

Almost surely, 2^6698879735 is an apocalyptic number.

6698879735 is a deficient number, since it is larger than the sum of its proper divisors (1339775953).

6698879735 is a wasteful number, since it uses less digits than its factorization.

6698879735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339775952.

The product of its digits is 137168640, while the sum is 68.

The square root of 6698879735 is about 81846.6843250232. The cubic root of 6698879735 is about 1885.0985541372.

The spelling of 6698879735 in words is "six billion, six hundred ninety-eight million, eight hundred seventy-nine thousand, seven hundred thirty-five".