27654386940 has 36 divisors (see below), whose sum is σ = 83884974264. Its totient is φ = 7374503136.

The previous prime is 27654386939. The next prime is 27654386959. The reversal of 27654386940 is 4968345672.

27654386940 is a `hidden beast` number, since 2 + 7 + 6 + 543 + 8 + 6 + 94 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76817562 + ... + 76817921.

It is an arithmetic number, because the mean of its divisors is an integer number (2330138174).

Almost surely, 2^27654386940 is an apocalyptic number.

27654386940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27654386940 is an abundant number, since it is smaller than the sum of its proper divisors (56230587324).

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

27654386940 is a wasteful number, since it uses less digits than its factorization.

27654386940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153635498 (or 153635493 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 27654386940 in words is "twenty-seven billion, six hundred fifty-four million, three hundred eighty-six thousand, nine hundred forty".