27937047817 has 16 divisors (see below), whose sum is σ = 32828400000. Its totient is φ = 23763208560.

The previous prime is 27937047811. The next prime is 27937047823. The reversal of 27937047817 is 71874073972.

It is an interprime number because it is at equal distance from previous prime (27937047811) and next prime (27937047823).

It is not a de Polignac number, because 27937047817 - 2¹⁵ = 27937015049 is a prime.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27937047811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265942 + ... + 355807.

It is an arithmetic number, because the mean of its divisors is an integer number (2051775000).

Almost surely, 2^27937047817 is an apocalyptic number.

It is an amenable number.

27937047817 is a deficient number, since it is larger than the sum of its proper divisors (4891352183).

27937047817 is an equidigital number, since it uses as much as digits as its factorization.

27937047817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621901 (or 621887 counting only the distinct ones).

The product of its (nonzero) digits is 4148928, while the sum is 55.

The spelling of 27937047817 in words is "twenty-seven billion, nine hundred thirty-seven million, forty-seven thousand, eight hundred seventeen".