27294398880 has 576 divisors, whose sum is σ = 103777873920. Its totient is φ = 5905336320.

The previous prime is 27294398851. The next prime is 27294398881. The reversal of 27294398880 is 8889349272.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (27294398881) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 255087787 + ... + 255087893.

It is an arithmetic number, because the mean of its divisors is an integer number (180169920).

Almost surely, 2^27294398880 is an apocalyptic number.

27294398880 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 27294398880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51888936960).

27294398880 is an abundant number, since it is smaller than the sum of its proper divisors (76483475040).

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

27294398880 is a wasteful number, since it uses less digits than its factorization.

27294398880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 60.

The spelling of 27294398880 in words is "twenty-seven billion, two hundred ninety-four million, three hundred ninety-eight thousand, eight hundred eighty".