11659326587 has 2 divisors, whose sum is σ = 11659326588. Its totient is φ = 11659326586.

The previous prime is 11659326509. The next prime is 11659326643. The reversal of 11659326587 is 78562395611.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11659326587 - 2¹⁴ = 11659310203 is a prime.

It is not a weakly prime, because it can be changed into another prime (11659326487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5829663293 + 5829663294.

It is an arithmetic number, because the mean of its divisors is an integer number (5829663294).

Almost surely, 2^11659326587 is an apocalyptic number.

11659326587 is a deficient number, since it is larger than the sum of its proper divisors (1).

11659326587 is an equidigital number, since it uses as much as digits as its factorization.

11659326587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 53.

The spelling of 11659326587 in words is "eleven billion, six hundred fifty-nine million, three hundred twenty-six thousand, five hundred eighty-seven".