27343197980 has 48 divisors (see below), whose sum is σ = 65833440960. Its totient is φ = 9344844288.

The previous prime is 27343197941. The next prime is 27343197989. The reversal of 27343197980 is 8979134372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27343197989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268175 + ... + 355814.

It is an arithmetic number, because the mean of its divisors is an integer number (1371530020).

Almost surely, 2^27343197980 is an apocalyptic number.

27343197980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27343197980 is an abundant number, since it is smaller than the sum of its proper divisors (38490242980).

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

27343197980 is a wasteful number, since it uses less digits than its factorization.

27343197980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624318 (or 624316 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 53.

The spelling of 27343197980 in words is "twenty-seven billion, three hundred forty-three million, one hundred ninety-seven thousand, nine hundred eighty".