27937975286797 has 2 divisors, whose sum is σ = 27937975286798. Its totient is φ = 27937975286796.

The previous prime is 27937975286729. The next prime is 27937975286821. The reversal of 27937975286797 is 79768257973972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14392417662756 + 13545557624041 = 3793734^2 + 3680429^2 .

It is a cyclic number.

It is not a de Polignac number, because 27937975286797 - 2¹⁵ = 27937975254029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27937975286597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13968987643398 + 13968987643399.

It is an arithmetic number, because the mean of its divisors is an integer number (13968987643399).

Almost surely, 2^{27937975286797} is an apocalyptic number.

It is an amenable number.

27937975286797 is a deficient number, since it is larger than the sum of its proper divisors (1).

27937975286797 is an equidigital number, since it uses as much as digits as its factorization.

27937975286797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35286632640, while the sum is 88.

The spelling of 27937975286797 in words is "twenty-seven trillion, nine hundred thirty-seven billion, nine hundred seventy-five million, two hundred eighty-six thousand, seven hundred ninety-seven".