27438035320 has 32 divisors (see below), whose sum is σ = 61742956320. Its totient is φ = 10973902720.

The previous prime is 27438035269. The next prime is 27438035327. The reversal of 27438035320 is 2353083472.

It is a self number, because there is not a number n which added to its sum of digits gives 27438035320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27438035327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342189 + ... + 414691.

It is an arithmetic number, because the mean of its divisors is an integer number (1929467385).

Almost surely, 2^27438035320 is an apocalyptic number.

27438035320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27438035320 is an abundant number, since it is smaller than the sum of its proper divisors (34304921000).

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

27438035320 is a wasteful number, since it uses less digits than its factorization.

27438035320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81975 (or 81971 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 27438035320 in words is "twenty-seven billion, four hundred thirty-eight million, thirty-five thousand, three hundred twenty".