11685487667 has 32 divisors (see below), whose sum is σ = 13990371840. Its totient is φ = 9551347200.

The previous prime is 11685487589. The next prime is 11685487669. The reversal of 11685487667 is 76678458611.

It is a cyclic number.

It is not a de Polignac number, because 11685487667 - 2¹⁰ = 11685486643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11685487669) 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, 6126728 + ... + 6128634.

It is an arithmetic number, because the mean of its divisors is an integer number (437199120).

Almost surely, 2^11685487667 is an apocalyptic number.

11685487667 is a deficient number, since it is larger than the sum of its proper divisors (2304884173).

11685487667 is a wasteful number, since it uses less digits than its factorization.

11685487667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411.

The product of its digits is 13547520, while the sum is 59.

The spelling of 11685487667 in words is "eleven billion, six hundred eighty-five million, four hundred eighty-seven thousand, six hundred sixty-seven".