27894000043 has 48 divisors (see below), whose sum is σ = 36194624256. Its totient is φ = 21285089280.

The previous prime is 27894000031. The next prime is 27894000077. The reversal of 27894000043 is 34000049872.

It is a happy number.

It is not a de Polignac number, because 27894000043 - 2²⁵ = 27860445611 is a prime.

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 27894000043 = 1083³ + 2986³ = 1654³ + 2859³.

It is a junction number, because it is equal to n+sod(n) for n = 27893999966 and 27894000011.

It is not an unprimeable number, because it can be changed into a prime (27894000083) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6178555 + ... + 6183067.

It is an arithmetic number, because the mean of its divisors is an integer number (754054672).

Almost surely, 2^27894000043 is an apocalyptic number.

27894000043 is a deficient number, since it is larger than the sum of its proper divisors (8300624213).

27894000043 is a wasteful number, since it uses less digits than its factorization.

27894000043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4884 (or 4877 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 27894000043 in words is "twenty-seven billion, eight hundred ninety-four million, forty-three", and thus it is an aban number.