27398422548 has 144 divisors (see below), whose sum is σ = 80638172160. Its totient is φ = 7683716160.

The previous prime is 27398422547. The next prime is 27398422553. The reversal of 27398422548 is 84522489372.

27398422548 is a `hidden beast` number, since 2 + 7 + 3 + 98 + 4 + 2 + 2 + 548 = 666.

It is a super-3 number, since 3×27398422548³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27398422494 and 27398422503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27398422543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57198973 + ... + 57199451.

Almost surely, 2^27398422548 is an apocalyptic number.

27398422548 is a gapful number since it is divisible by the number (28) 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 27398422548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40319086080).

27398422548 is an abundant number, since it is smaller than the sum of its proper divisors (53239749612).

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

27398422548 is an equidigital number, since it uses as much as digits as its factorization.

27398422548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 552 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The spelling of 27398422548 in words is "twenty-seven billion, three hundred ninety-eight million, four hundred twenty-two thousand, five hundred forty-eight".