27100905644 has 12 divisors (see below), whose sum is σ = 47869824744. Its totient is φ = 13423812864.

The previous prime is 27100905613. The next prime is 27100905661. The reversal of 27100905644 is 44650900172.

It is a junction number, because it is equal to n+sod(n) for n = 27100905598 and 27100905607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31659509 + ... + 31660364.

It is an arithmetic number, because the mean of its divisors is an integer number (3989152062).

Almost surely, 2^27100905644 is an apocalyptic number.

It is an amenable number.

27100905644 is a deficient number, since it is larger than the sum of its proper divisors (20768919100).

27100905644 is a wasteful number, since it uses less digits than its factorization.

27100905644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63319984 (or 63319982 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 27100905644 in words is "twenty-seven billion, one hundred million, nine hundred five thousand, six hundred forty-four".