11393851369 has 2 divisors, whose sum is σ = 11393851370. Its totient is φ = 11393851368.

The previous prime is 11393851351. The next prime is 11393851409. The reversal of 11393851369 is 96315839311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10478183769 + 915667600 = 102363^2 + 30260^2 .

It is a cyclic number.

It is not a de Polignac number, because 11393851369 - 2²³ = 11385462761 is a prime.

It is a super-2 number, since 2×11393851369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11393851769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5696925684 + 5696925685.

It is an arithmetic number, because the mean of its divisors is an integer number (5696925685).

Almost surely, 2^11393851369 is an apocalyptic number.

It is an amenable number.

11393851369 is a deficient number, since it is larger than the sum of its proper divisors (1).

11393851369 is an equidigital number, since it uses as much as digits as its factorization.

11393851369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 49.

The spelling of 11393851369 in words is "eleven billion, three hundred ninety-three million, eight hundred fifty-one thousand, three hundred sixty-nine".