27857101903 has 2 divisors, whose sum is σ = 27857101904. Its totient is φ = 27857101902.

The previous prime is 27857101879. The next prime is 27857101919. The reversal of 27857101903 is 30910175872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27857101903 - 2¹³ = 27857093711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27857101903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27857101403) 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 as a sum of consecutive naturals, namely, 13928550951 + 13928550952.

It is an arithmetic number, because the mean of its divisors is an integer number (13928550952).

Almost surely, 2^27857101903 is an apocalyptic number.

27857101903 is a deficient number, since it is larger than the sum of its proper divisors (1).

27857101903 is an equidigital number, since it uses as much as digits as its factorization.

27857101903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 43.

The spelling of 27857101903 in words is "twenty-seven billion, eight hundred fifty-seven million, one hundred one thousand, nine hundred three".