27494992836 has 120 divisors (see below), whose sum is σ = 73128760320. Its totient is φ = 9006536448.

The previous prime is 27494992831. The next prime is 27494992841. The reversal of 27494992836 is 63829949472.

27494992836 is a `hidden beast` number, since 2 + 7 + 494 + 99 + 28 + 36 = 666.

It is an interprime number because it is at equal distance from previous prime (27494992831) and next prime (27494992841).

It is not an unprimeable number, because it can be changed into a prime (27494992831) 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 39 ways as a sum of consecutive naturals, for example, 5705500 + ... + 5710316.

It is an arithmetic number, because the mean of its divisors is an integer number (609406336).

Almost surely, 2^27494992836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27494992836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36564380160).

27494992836 is an abundant number, since it is smaller than the sum of its proper divisors (45633767484).

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

27494992836 is a wasteful number, since it uses less digits than its factorization.

27494992836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5135 (or 5124 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 63.

The spelling of 27494992836 in words is "twenty-seven billion, four hundred ninety-four million, nine hundred ninety-two thousand, eight hundred thirty-six".