11442353737 has 4 divisors (see below), whose sum is σ = 11444689540. Its totient is φ = 11440017936.

The previous prime is 11442353719. The next prime is 11442353749. The reversal of 11442353737 is 73735324411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11187504441 + 254849296 = 105771^2 + 15964^2 .

It is a cyclic number.

It is not a de Polignac number, because 11442353737 - 2⁷ = 11442353609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11442353737.

It is not an unprimeable number, because it can be changed into a prime (11442353777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160538 + ... + 1170355.

It is an arithmetic number, because the mean of its divisors is an integer number (2861172385).

Almost surely, 2^11442353737 is an apocalyptic number.

It is an amenable number.

11442353737 is a deficient number, since it is larger than the sum of its proper divisors (2335803).

11442353737 is an equidigital number, since it uses as much as digits as its factorization.

11442353737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2335802.

The product of its digits is 211680, while the sum is 40.

The spelling of 11442353737 in words is "eleven billion, four hundred forty-two million, three hundred fifty-three thousand, seven hundred thirty-seven".