11885009749 has 2 divisors, whose sum is σ = 11885009750. Its totient is φ = 11885009748.

The previous prime is 11885009687. The next prime is 11885009761. The reversal of 11885009749 is 94790058811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11848322500 + 36687249 = 108850^2 + 6057^2 .

It is a cyclic number.

It is not a de Polignac number, because 11885009749 - 2²¹ = 11882912597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11885009696 and 11885009705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11885004749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5942504874 + 5942504875.

It is an arithmetic number, because the mean of its divisors is an integer number (5942504875).

Almost surely, 2^11885009749 is an apocalyptic number.

It is an amenable number.

11885009749 is a deficient number, since it is larger than the sum of its proper divisors (1).

11885009749 is an equidigital number, since it uses as much as digits as its factorization.

11885009749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 52.

The spelling of 11885009749 in words is "eleven billion, eight hundred eighty-five million, nine thousand, seven hundred forty-nine".