6689270930 has 16 divisors (see below), whose sum is σ = 12101811480. Its totient is φ = 2662125312.

The previous prime is 6689270899. The next prime is 6689270933. The reversal of 6689270930 is 390729866.

It can be written as a sum of positive squares in 4 ways, for example, as 6658723201 + 30547729 = 81601^2 + 5527^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6689270933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1695815 + ... + 1699754.

Almost surely, 2^6689270930 is an apocalyptic number.

6689270930 is a deficient number, since it is larger than the sum of its proper divisors (5412540550).

6689270930 is a wasteful number, since it uses less digits than its factorization.

6689270930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395773.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 6689270930 is about 81787.9632342070. The cubic root of 6689270930 is about 1884.1968007762.

The spelling of 6689270930 in words is "six billion, six hundred eighty-nine million, two hundred seventy thousand, nine hundred thirty".