11768623668 has 18 divisors (see below), whose sum is σ = 29748465474. Its totient is φ = 3922874544.

The previous prime is 11768623637. The next prime is 11768623681. The reversal of 11768623668 is 86632686711.

11768623668 is a `hidden beast` number, since 1 + 1 + 7 + 6 + 8 + 623 + 6 + 6 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10747054224 + 1021569444 = 103668^2 + 31962^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 163453071 + ... + 163453142.

Almost surely, 2^11768623668 is an apocalyptic number.

11768623668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11768623668 is an abundant number, since it is smaller than the sum of its proper divisors (17979841806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11768623668 is a wasteful number, since it uses less digits than its factorization.

11768623668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326906223 (or 326906218 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 11768623668 in words is "eleven billion, seven hundred sixty-eight million, six hundred twenty-three thousand, six hundred sixty-eight".