11254788869 has 2 divisors, whose sum is σ = 11254788870. Its totient is φ = 11254788868.

The previous prime is 11254788827. The next prime is 11254788877. The reversal of 11254788869 is 96888745211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11249359969 + 5428900 = 106063^2 + 2330^2 .

It is an emirp because it is prime and its reverse (96888745211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11254788869 - 2²⁰ = 11253740293 is a prime.

It is a super-2 number, since 2×11254788869² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11254788269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5627394434 + 5627394435.

It is an arithmetic number, because the mean of its divisors is an integer number (5627394435).

Almost surely, 2^11254788869 is an apocalyptic number.

It is an amenable number.

11254788869 is a deficient number, since it is larger than the sum of its proper divisors (1).

11254788869 is an equidigital number, since it uses as much as digits as its factorization.

11254788869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7741440, while the sum is 59.

The spelling of 11254788869 in words is "eleven billion, two hundred fifty-four million, seven hundred eighty-eight thousand, eight hundred sixty-nine".