27806057830 has 32 divisors (see below), whose sum is σ = 50595146784. Its totient is φ = 11001609216.

The previous prime is 27806057809. The next prime is 27806057831. The reversal of 27806057830 is 3875060872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27806057831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1984429 + ... + 1998391.

It is an arithmetic number, because the mean of its divisors is an integer number (1581098337).

Almost surely, 2^27806057830 is an apocalyptic number.

27806057830 is a deficient number, since it is larger than the sum of its proper divisors (22789088954).

27806057830 is a wasteful number, since it uses less digits than its factorization.

27806057830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16120.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 27806057830 in words is "twenty-seven billion, eight hundred six million, fifty-seven thousand, eight hundred thirty".