27130720020 has 24 divisors (see below), whose sum is σ = 75966016224. Its totient is φ = 7234858656.

The previous prime is 27130720013. The next prime is 27130720021. The reversal of 27130720020 is 2002703172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27130720021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226089274 + ... + 226089393.

It is an arithmetic number, because the mean of its divisors is an integer number (3165250676).

Almost surely, 2^27130720020 is an apocalyptic number.

27130720020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27130720020 is an abundant number, since it is smaller than the sum of its proper divisors (48835296204).

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

27130720020 is a wasteful number, since it uses less digits than its factorization.

27130720020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452178679 (or 452178677 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 24.

The spelling of 27130720020 in words is "twenty-seven billion, one hundred thirty million, seven hundred twenty thousand, twenty".