27654561364672 has 56 divisors (see below), whose sum is σ = 59867517868992. Its totient is φ = 12569902905600.

The previous prime is 27654561364667. The next prime is 27654561364673. The reversal of 27654561364672 is 27646316545672.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is not an unprimeable number, because it can be changed into a prime (27654561364673) 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, 25461847 + ... + 26525737.

Almost surely, 2^{27654561364672} is an apocalyptic number.

27654561364672 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27654561364672 is an abundant number, since it is smaller than the sum of its proper divisors (32212956504320).

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

27654561364672 is a wasteful number, since it uses less digits than its factorization.

27654561364672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100837 (or 1100827 counting only the distinct ones).

The product of its digits is 304819200, while the sum is 64.

The spelling of 27654561364672 in words is "twenty-seven trillion, six hundred fifty-four billion, five hundred sixty-one million, three hundred sixty-four thousand, six hundred seventy-two".