27621088880 has 160 divisors (see below), whose sum is σ = 84279605760. Its totient is φ = 8156021760.

The previous prime is 27621088853. The next prime is 27621088927. The reversal of 27621088880 is 8888012672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 959 + ... + 235038.

It is an arithmetic number, because the mean of its divisors is an integer number (526747536).

Almost surely, 2^27621088880 is an apocalyptic number.

27621088880 is a gapful number since it is divisible by the number (20) 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 27621088880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42139802880).

27621088880 is an abundant number, since it is smaller than the sum of its proper divisors (56658516880).

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

27621088880 is a wasteful number, since it uses less digits than its factorization.

27621088880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236047 (or 236041 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 50.

The spelling of 27621088880 in words is "twenty-seven billion, six hundred twenty-one million, eighty-eight thousand, eight hundred eighty".