11526437749 has 2 divisors, whose sum is σ = 11526437750. Its totient is φ = 11526437748.

The previous prime is 11526437743. The next prime is 11526437777. The reversal of 11526437749 is 94773462511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6998493649 + 4527944100 = 83657^2 + 67290^2 .

It is a cyclic number.

It is not a de Polignac number, because 11526437749 - 2⁷ = 11526437621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11526437743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5763218874 + 5763218875.

It is an arithmetic number, because the mean of its divisors is an integer number (5763218875).

Almost surely, 2^11526437749 is an apocalyptic number.

It is an amenable number.

11526437749 is a deficient number, since it is larger than the sum of its proper divisors (1).

11526437749 is an equidigital number, since it uses as much as digits as its factorization.

11526437749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 49.

The spelling of 11526437749 in words is "eleven billion, five hundred twenty-six million, four hundred thirty-seven thousand, seven hundred forty-nine".