11439835534873 has 2 divisors, whose sum is σ = 11439835534874. Its totient is φ = 11439835534872.

The previous prime is 11439835534871. The next prime is 11439835534913. The reversal of 11439835534873 is 37843553893411.

11439835534873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7156438223104 + 4283397311769 = 2675152^2 + 2069637^2 .

It is a cyclic number.

It is not a de Polignac number, because 11439835534873 - 2¹ = 11439835534871 is a prime.

It is a super-2 number, since 2×11439835534873² (a number of 27 digits) contains 22 as substring.

Together with 11439835534871, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11439835534871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5719917767436 + 5719917767437.

It is an arithmetic number, because the mean of its divisors is an integer number (5719917767437).

Almost surely, 2^{11439835534873} is an apocalyptic number.

It is an amenable number.

11439835534873 is a deficient number, since it is larger than the sum of its proper divisors (1).

11439835534873 is an equidigital number, since it uses as much as digits as its factorization.

11439835534873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 130636800, while the sum is 64.

The spelling of 11439835534873 in words is "eleven trillion, four hundred thirty-nine billion, eight hundred thirty-five million, five hundred thirty-four thousand, eight hundred seventy-three".