27390713220 has 192 divisors, whose sum is σ = 91869120000. Its totient is φ = 6735094272.

The previous prime is 27390713173. The next prime is 27390713221. The reversal of 27390713220 is 2231709372.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (27390713221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9819586 + ... + 9822374.

It is an arithmetic number, because the mean of its divisors is an integer number (478485000).

Almost surely, 2^27390713220 is an apocalyptic number.

27390713220 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 27390713220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45934560000).

27390713220 is an abundant number, since it is smaller than the sum of its proper divisors (64478406780).

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

27390713220 is a wasteful number, since it uses less digits than its factorization.

27390713220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4219 (or 4211 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The spelling of 27390713220 in words is "twenty-seven billion, three hundred ninety million, seven hundred thirteen thousand, two hundred twenty".