11868868387 has 2 divisors, whose sum is σ = 11868868388. Its totient is φ = 11868868386.

The previous prime is 11868868381. The next prime is 11868868421. The reversal of 11868868387 is 78386886811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11868868387 - 2¹⁹ = 11868344099 is a prime.

It is not a weakly prime, because it can be changed into another prime (11868868381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5934434193 + 5934434194.

It is an arithmetic number, because the mean of its divisors is an integer number (5934434194).

Almost surely, 2^11868868387 is an apocalyptic number.

11868868387 is a deficient number, since it is larger than the sum of its proper divisors (1).

11868868387 is an equidigital number, since it uses as much as digits as its factorization.

11868868387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24772608, while the sum is 64.

The spelling of 11868868387 in words is "eleven billion, eight hundred sixty-eight million, eight hundred sixty-eight thousand, three hundred eighty-seven".