27042987888 has 720 divisors, whose sum is σ = 99616957440. Its totient is φ = 7054387200.

The previous prime is 27042987883. The next prime is 27042987889. The reversal of 27042987888 is 88878924072.

27042987888 is a `hidden beast` number, since 270 + 4 + 298 + 78 + 8 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27042987883) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 112211448 + ... + 112211688.

Almost surely, 2^27042987888 is an apocalyptic number.

27042987888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27042987888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49808478720).

27042987888 is an abundant number, since it is smaller than the sum of its proper divisors (72573969552).

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

27042987888 is a wasteful number, since it uses less digits than its factorization.

27042987888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 28901376, while the sum is 63.

The spelling of 27042987888 in words is "twenty-seven billion, forty-two million, nine hundred eighty-seven thousand, eight hundred eighty-eight".