11767043609 has 2 divisors, whose sum is σ = 11767043610. Its totient is φ = 11767043608.

The previous prime is 11767043579. The next prime is 11767043621. The reversal of 11767043609 is 90634076711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11008206400 + 758837209 = 104920^2 + 27547^2 .

It is a cyclic number.

It is not a de Polignac number, because 11767043609 - 2¹⁶ = 11766978073 is a prime.

It is a super-2 number, since 2×11767043609² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11767043609.

It is not a weakly prime, because it can be changed into another prime (11767043669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5883521804 + 5883521805.

It is an arithmetic number, because the mean of its divisors is an integer number (5883521805).

Almost surely, 2^11767043609 is an apocalyptic number.

It is an amenable number.

11767043609 is a deficient number, since it is larger than the sum of its proper divisors (1).

11767043609 is an equidigital number, since it uses as much as digits as its factorization.

11767043609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The spelling of 11767043609 in words is "eleven billion, seven hundred sixty-seven million, forty-three thousand, six hundred nine".