27091477623040 has 144 divisors (see below), whose sum is σ = 66724639108848. Its totient is φ = 10531333767168.

The previous prime is 27091477623011. The next prime is 27091477623139. The reversal of 27091477623040 is 4032677419072.

It can be written as a sum of positive squares in 8 ways, for example, as 3763041300736 + 23328436322304 = 1939856^2 + 4829952^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40062774 + ... + 40733386.

It is an arithmetic number, because the mean of its divisors is an integer number (463365549367).

Almost surely, 2^{27091477623040} is an apocalyptic number.

27091477623040 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 27091477623040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33362319554424).

27091477623040 is an abundant number, since it is smaller than the sum of its proper divisors (39633161485808).

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

27091477623040 is an equidigital number, since it uses as much as digits as its factorization.

27091477623040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671524 (or 671510 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 52.

The spelling of 27091477623040 in words is "twenty-seven trillion, ninety-one billion, four hundred seventy-seven million, six hundred twenty-three thousand, forty".