2691173930 has 32 divisors (see below), whose sum is σ = 4883922000. Its totient is φ = 1067645952.

The previous prime is 2691173923. The next prime is 2691173941. The reversal of 2691173930 is 393711962.

It can be written as a sum of positive squares in 8 ways, for example, as 7623121 + 2683550809 = 2761^2 + 51803^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1806626 + ... + 1808114.

Almost surely, 2^2691173930 is an apocalyptic number.

2691173930 is a deficient number, since it is larger than the sum of its proper divisors (2192748070).

2691173930 is a wasteful number, since it uses less digits than its factorization.

2691173930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 2691173930 is about 51876.5258088859. The cubic root of 2691173930 is about 1390.9576979209.

The spelling of 2691173930 in words is "two billion, six hundred ninety-one million, one hundred seventy-three thousand, nine hundred thirty".