27903385731337 has 2 divisors, whose sum is σ = 27903385731338. Its totient is φ = 27903385731336.

The previous prime is 27903385731271. The next prime is 27903385731343. The reversal of 27903385731337 is 73313758330972.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27832493473801 + 70892257536 = 5275651^2 + 266256^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27903385731337 is a prime.

It is not a weakly prime, because it can be changed into another prime (27903385731737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13951692865668 + 13951692865669.

It is an arithmetic number, because the mean of its divisors is an integer number (13951692865669).

Almost surely, 2^{27903385731337} is an apocalyptic number.

It is an amenable number.

27903385731337 is a deficient number, since it is larger than the sum of its proper divisors (1).

27903385731337 is an equidigital number, since it uses as much as digits as its factorization.

27903385731337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60011280, while the sum is 61.

The spelling of 27903385731337 in words is "twenty-seven trillion, nine hundred three billion, three hundred eighty-five million, seven hundred thirty-one thousand, three hundred thirty-seven".