27994695590 has 32 divisors (see below), whose sum is σ = 50599396224. Its totient is φ = 11151544320.

The previous prime is 27994695581. The next prime is 27994695611. The reversal of 27994695590 is 9559649972.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2481242 + ... + 2492498.

It is an arithmetic number, because the mean of its divisors is an integer number (1581231132).

Almost surely, 2^27994695590 is an apocalyptic number.

27994695590 is a deficient number, since it is larger than the sum of its proper divisors (22604700634).

27994695590 is a wasteful number, since it uses less digits than its factorization.

27994695590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12272.

The product of its (nonzero) digits is 55112400, while the sum is 65.

The spelling of 27994695590 in words is "twenty-seven billion, nine hundred ninety-four million, six hundred ninety-five thousand, five hundred ninety".