27193918488 has 96 divisors (see below), whose sum is σ = 79122944880. Its totient is φ = 7755827200.

The previous prime is 27193918459. The next prime is 27193918553. The reversal of 27193918488 is 88481939172.

It is a super-2 number, since 2×27193918488² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 226053 + ... + 324788.

Almost surely, 2^27193918488 is an apocalyptic number.

It is an amenable number.

27193918488 is an abundant number, since it is smaller than the sum of its proper divisors (51929026392).

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

27193918488 is a wasteful number, since it uses less digits than its factorization.

27193918488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550889 (or 550874 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 60.

The spelling of 27193918488 in words is "twenty-seven billion, one hundred ninety-three million, nine hundred eighteen thousand, four hundred eighty-eight".