27861494832 has 50 divisors (see below), whose sum is σ = 80639253068. Its totient is φ = 9287164512.

The previous prime is 27861494831. The next prime is 27861494833. The reversal of 27861494832 is 23849416872.

27861494832 is a `hidden beast` number, since 2 + 78 + 6 + 1 + 494 + 83 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (27861494831) and next prime (27861494833).

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

It is not an unprimeable number, because it can be changed into a prime (27861494831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10747738 + ... + 10750329.

Almost surely, 2^27861494832 is an apocalyptic number.

It is an amenable number.

27861494832 is an abundant number, since it is smaller than the sum of its proper divisors (52777758236).

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

27861494832 is a wasteful number, since it uses less digits than its factorization.

27861494832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21498087 (or 21498072 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 27861494832 in words is "twenty-seven billion, eight hundred sixty-one million, four hundred ninety-four thousand, eight hundred thirty-two".