27403916257433 has 2 divisors, whose sum is σ = 27403916257434. Its totient is φ = 27403916257432.

The previous prime is 27403916257391. The next prime is 27403916257489. The reversal of 27403916257433 is 33475261930472.

It is an a-pointer prime, because the next prime (27403916257489) can be obtained adding 27403916257433 to its sum of digits (56).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16952060474944 + 10451855782489 = 4117288^2 + 3232933^2 .

It is a cyclic number.

It is not a de Polignac number, because 27403916257433 - 2⁸ = 27403916257177 is a prime.

It is not a weakly prime, because it can be changed into another prime (27403916251433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13701958128716 + 13701958128717.

It is an arithmetic number, because the mean of its divisors is an integer number (13701958128717).

Almost surely, 2^{27403916257433} is an apocalyptic number.

It is an amenable number.

27403916257433 is a deficient number, since it is larger than the sum of its proper divisors (1).

27403916257433 is an equidigital number, since it uses as much as digits as its factorization.

27403916257433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22861440, while the sum is 56.

The spelling of 27403916257433 in words is "twenty-seven trillion, four hundred three billion, nine hundred sixteen million, two hundred fifty-seven thousand, four hundred thirty-three".