27940105356 has 24 divisors (see below), whose sum is σ = 66709710144. Its totient is φ = 9096778320.

The previous prime is 27940105343. The next prime is 27940105367. The reversal of 27940105356 is 65350104972.

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, 27073230 + ... + 27074261.

It is an arithmetic number, because the mean of its divisors is an integer number (2779571256).

Almost surely, 2^27940105356 is an apocalyptic number.

It is an amenable number.

27940105356 is an abundant number, since it is smaller than the sum of its proper divisors (38769604788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27940105356 is a wasteful number, since it uses less digits than its factorization.

27940105356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54147541 (or 54147539 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The spelling of 27940105356 in words is "twenty-seven billion, nine hundred forty million, one hundred five thousand, three hundred fifty-six".