6698671379 has 4 divisors (see below), whose sum is σ = 6764994960. Its totient is φ = 6632347800.

The previous prime is 6698671373. The next prime is 6698671393. The reversal of 6698671379 is 9731768966.

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

It is a cyclic number.

It is not a de Polignac number, because 6698671379 - 2²⁸ = 6430235923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6698671373) 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 3 ways as a sum of consecutive naturals, for example, 33161639 + ... + 33161840.

It is an arithmetic number, because the mean of its divisors is an integer number (1691248740).

Almost surely, 2^6698671379 is an apocalyptic number.

6698671379 is a deficient number, since it is larger than the sum of its proper divisors (66323581).

6698671379 is a wasteful number, since it uses less digits than its factorization.

6698671379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66323580.

The product of its digits is 20575296, while the sum is 62.

The square root of 6698671379 is about 81845.4114718718. The cubic root of 6698671379 is about 1885.0790097914.

The spelling of 6698671379 in words is "six billion, six hundred ninety-eight million, six hundred seventy-one thousand, three hundred seventy-nine".