27857120807 has 8 divisors (see below), whose sum is σ = 29332566960. Its totient is φ = 26382602880.

The previous prime is 27857120779. The next prime is 27857120827. The reversal of 27857120807 is 70802175872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27857120807 - 2²² = 27852926503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27857120827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170018 + ... + 290895.

It is an arithmetic number, because the mean of its divisors is an integer number (3666570870).

Almost surely, 2^27857120807 is an apocalyptic number.

27857120807 is a deficient number, since it is larger than the sum of its proper divisors (1475446153).

27857120807 is a wasteful number, since it uses less digits than its factorization.

27857120807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464113.

The product of its (nonzero) digits is 439040, while the sum is 47.

The spelling of 27857120807 in words is "twenty-seven billion, eight hundred fifty-seven million, one hundred twenty thousand, eight hundred seven".