11615265587 has 2 divisors, whose sum is σ = 11615265588. Its totient is φ = 11615265586.

The previous prime is 11615265569. The next prime is 11615265677. The reversal of 11615265587 is 78556251611.

11615265587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (78556251611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11615265587 - 2²⁴ = 11598488371 is a prime.

It is not a weakly prime, because it can be changed into another prime (11615265517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5807632793 + 5807632794.

It is an arithmetic number, because the mean of its divisors is an integer number (5807632794).

Almost surely, 2^11615265587 is an apocalyptic number.

11615265587 is a deficient number, since it is larger than the sum of its proper divisors (1).

11615265587 is an equidigital number, since it uses as much as digits as its factorization.

11615265587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504000, while the sum is 47.

The spelling of 11615265587 in words is "eleven billion, six hundred fifteen million, two hundred sixty-five thousand, five hundred eighty-seven".