27793539072 has 420 divisors, whose sum is σ = 90252114120. Its totient is φ = 8504082432.

The previous prime is 27793539061. The next prime is 27793539101. The reversal of 27793539072 is 27093539772.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 155271079 + ... + 155271257.

It is an arithmetic number, because the mean of its divisors is an integer number (214885986).

Almost surely, 2^27793539072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27793539072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45126057060).

27793539072 is an abundant number, since it is smaller than the sum of its proper divisors (62458575048).

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

27793539072 is an frugal number, since it uses more digits than its factorization.

27793539072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 5000940, while the sum is 54.

The spelling of 27793539072 in words is "twenty-seven billion, seven hundred ninety-three million, five hundred thirty-nine thousand, seventy-two".