27645854672 has 40 divisors (see below), whose sum is σ = 54502627680. Its totient is φ = 13580927360.

The previous prime is 27645854671. The next prime is 27645854693.

27645854672 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27645854671) 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, 1883522 + ... + 1898142.

It is an arithmetic number, because the mean of its divisors is an integer number (1362565692).

Almost surely, 2^27645854672 is an apocalyptic number.

It is an amenable number.

27645854672 is a deficient number, since it is larger than the sum of its proper divisors (26856773008).

27645854672 is a wasteful number, since it uses less digits than its factorization.

27645854672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16691 (or 16685 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 56.

The spelling of 27645854672 in words is "twenty-seven billion, six hundred forty-five million, eight hundred fifty-four thousand, six hundred seventy-two".