134263868239849 has 2 divisors, whose sum is σ = 134263868239850. Its totient is φ = 134263868239848.

The previous prime is 134263868239819. The next prime is 134263868239927. The reversal of 134263868239849 is 948932868362431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83881199534224 + 50382668705625 = 9158668^2 + 7098075^2 .

It is a cyclic number.

It is not a de Polignac number, because 134263868239849 - 2¹⁹ = 134263867715561 is a prime.

It is not a weakly prime, because it can be changed into another prime (134263868239819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67131934119924 + 67131934119925.

It is an arithmetic number, because the mean of its divisors is an integer number (67131934119925).

Almost surely, 2^{134263868239849} is an apocalyptic number.

It is an amenable number.

134263868239849 is a deficient number, since it is larger than the sum of its proper divisors (1).

134263868239849 is an equidigital number, since it uses as much as digits as its factorization.

134263868239849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2579890176, while the sum is 76.

The spelling of 134263868239849 in words is "one hundred thirty-four trillion, two hundred sixty-three billion, eight hundred sixty-eight million, two hundred thirty-nine thousand, eight hundred forty-nine".