27929881606 has 16 divisors (see below), whose sum is σ = 45738457920. Its totient is φ = 12685674280.

The previous prime is 27929881579. The next prime is 27929881607. The reversal of 27929881606 is 60618892972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27929881607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456916 + ... + 514423.

It is an arithmetic number, because the mean of its divisors is an integer number (2858653620).

Almost surely, 2^27929881606 is an apocalyptic number.

27929881606 is a deficient number, since it is larger than the sum of its proper divisors (17808576314).

27929881606 is a wasteful number, since it uses less digits than its factorization.

27929881606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972659.

The product of its (nonzero) digits is 5225472, while the sum is 58.

The spelling of 27929881606 in words is "twenty-seven billion, nine hundred twenty-nine million, eight hundred eighty-one thousand, six hundred six".