11435957849 has 2 divisors, whose sum is σ = 11435957850. Its totient is φ = 11435957848.

The previous prime is 11435957843. The next prime is 11435957921. The reversal of 11435957849 is 94875953411.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6438457600 + 4997500249 = 80240^2 + 70693^2 .

It is a cyclic number.

It is not a de Polignac number, because 11435957849 - 2¹⁶ = 11435892313 is a prime.

It is a super-2 number, since 2×11435957849² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11435957794 and 11435957803.

It is not a weakly prime, because it can be changed into another prime (11435957843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5717978924 + 5717978925.

It is an arithmetic number, because the mean of its divisors is an integer number (5717978925).

Almost surely, 2^11435957849 is an apocalyptic number.

It is an amenable number.

11435957849 is a deficient number, since it is larger than the sum of its proper divisors (1).

11435957849 is an equidigital number, since it uses as much as digits as its factorization.

11435957849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5443200, while the sum is 56.

The spelling of 11435957849 in words is "eleven billion, four hundred thirty-five million, nine hundred fifty-seven thousand, eight hundred forty-nine".