27693481930 has 16 divisors (see below), whose sum is σ = 49894917480. Its totient is φ = 11067026112.

The previous prime is 27693481903. The next prime is 27693481973. The reversal of 27693481930 is 3918439672.

It can be written as a sum of positive squares in 4 ways, for example, as 14419446561 + 13274035369 = 120081^2 + 115213^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1284609 + ... + 1305988.

Almost surely, 2^27693481930 is an apocalyptic number.

27693481930 is a deficient number, since it is larger than the sum of its proper divisors (22201435550).

27693481930 is a wasteful number, since it uses less digits than its factorization.

27693481930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591673.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 27693481930 in words is "twenty-seven billion, six hundred ninety-three million, four hundred eighty-one thousand, nine hundred thirty".