6691172930 has 32 divisors (see below), whose sum is σ = 12974202864. Its totient is φ = 2469897216.

The previous prime is 6691172921. The next prime is 6691172941. The reversal of 6691172930 is 392711966.

It can be written as a sum of positive squares in 8 ways, for example, as 25593481 + 6665579449 = 5059^2 + 81643^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 879302 + ... + 886878.

Almost surely, 2^6691172930 is an apocalyptic number.

6691172930 is a deficient number, since it is larger than the sum of its proper divisors (6283029934).

6691172930 is a wasteful number, since it uses less digits than its factorization.

6691172930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14390.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 6691172930 is about 81799.5900356475. The cubic root of 6691172930 is about 1884.3753654630.

The spelling of 6691172930 in words is "six billion, six hundred ninety-one million, one hundred seventy-two thousand, nine hundred thirty".