11708656687 has 32 divisors (see below), whose sum is σ = 15311721600. Its totient is φ = 8718718464.

The previous prime is 11708656681. The next prime is 11708656709. The reversal of 11708656687 is 78665680711.

It is not a de Polignac number, because 11708656687 - 2³ = 11708656679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11708656681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 433989 + ... + 460177.

It is an arithmetic number, because the mean of its divisors is an integer number (478491300).

Almost surely, 2^11708656687 is an apocalyptic number.

11708656687 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11708656687 is a deficient number, since it is larger than the sum of its proper divisors (3603064913).

11708656687 is an equidigital number, since it uses as much as digits as its factorization.

11708656687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26260 (or 26226 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 11708656687 in words is "eleven billion, seven hundred eight million, six hundred fifty-six thousand, six hundred eighty-seven".