27670136020 has 24 divisors (see below), whose sum is σ = 61525362024. Its totient is φ = 10416992256.

The previous prime is 27670136017. The next prime is 27670136027. The reversal of 27670136020 is 2063107672.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2958924816 + 24711211204 = 54396^2 + 157198^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27670136027) 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, 40691037 + ... + 40691716.

It is an arithmetic number, because the mean of its divisors is an integer number (2563556751).

Almost surely, 2^27670136020 is an apocalyptic number.

27670136020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27670136020 is an abundant number, since it is smaller than the sum of its proper divisors (33855226004).

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

27670136020 is a wasteful number, since it uses less digits than its factorization.

27670136020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81382779 (or 81382777 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The spelling of 27670136020 in words is "twenty-seven billion, six hundred seventy million, one hundred thirty-six thousand, twenty".