27538732782 has 64 divisors (see below), whose sum is σ = 66780241920. Its totient is φ = 8342611200.

The previous prime is 27538732729. The next prime is 27538732787. The reversal of 27538732782 is 28723783572.

27538732782 is a `hidden beast` number, since 2 + 7 + 538 + 7 + 3 + 27 + 82 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27538732787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3721278 + ... + 3728670.

It is an arithmetic number, because the mean of its divisors is an integer number (1043441280).

Almost surely, 2^27538732782 is an apocalyptic number.

27538732782 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

27538732782 is an abundant number, since it is smaller than the sum of its proper divisors (39241509138).

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

27538732782 is a wasteful number, since it uses less digits than its factorization.

27538732782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13686 (or 13680 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 54.

The spelling of 27538732782 in words is "twenty-seven billion, five hundred thirty-eight million, seven hundred thirty-two thousand, seven hundred eighty-two".