11989591753 has 2 divisors, whose sum is σ = 11989591754. Its totient is φ = 11989591752.

The previous prime is 11989591739. The next prime is 11989591799. The reversal of 11989591753 is 35719598911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11332028304 + 657563449 = 106452^2 + 25643^2 .

It is an emirp because it is prime and its reverse (35719598911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11989591753 - 2²⁹ = 11452720841 is a prime.

It is a super-2 number, since 2×11989591753² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11989591723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5994795876 + 5994795877.

It is an arithmetic number, because the mean of its divisors is an integer number (5994795877).

Almost surely, 2^11989591753 is an apocalyptic number.

It is an amenable number.

11989591753 is a deficient number, since it is larger than the sum of its proper divisors (1).

11989591753 is an equidigital number, since it uses as much as digits as its factorization.

11989591753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3061800, while the sum is 58.

The spelling of 11989591753 in words is "eleven billion, nine hundred eighty-nine million, five hundred ninety-one thousand, seven hundred fifty-three".