11923678658587 has 2 divisors, whose sum is σ = 11923678658588. Its totient is φ = 11923678658586.

The previous prime is 11923678658569. The next prime is 11923678658599. The reversal of 11923678658587 is 78585687632911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11923678658587 - 2¹⁵ = 11923678625819 is a prime.

It is a super-2 number, since 2×11923678658587² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11923678658557) 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, 5961839329293 + 5961839329294.

It is an arithmetic number, because the mean of its divisors is an integer number (5961839329294).

Almost surely, 2^{11923678658587} is an apocalyptic number.

11923678658587 is a deficient number, since it is larger than the sum of its proper divisors (1).

11923678658587 is an equidigital number, since it uses as much as digits as its factorization.

11923678658587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1219276800, while the sum is 76.

The spelling of 11923678658587 in words is "eleven trillion, nine hundred twenty-three billion, six hundred seventy-eight million, six hundred fifty-eight thousand, five hundred eighty-seven".