11668764427 has 2 divisors, whose sum is σ = 11668764428. Its totient is φ = 11668764426.

The previous prime is 11668764403. The next prime is 11668764439. The reversal of 11668764427 is 72446786611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11668764427 - 2⁷ = 11668764299 is a prime.

It is not a weakly prime, because it can be changed into another prime (11668764127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5834382213 + 5834382214.

It is an arithmetic number, because the mean of its divisors is an integer number (5834382214).

Almost surely, 2^11668764427 is an apocalyptic number.

11668764427 is a deficient number, since it is larger than the sum of its proper divisors (1).

11668764427 is an equidigital number, since it uses as much as digits as its factorization.

11668764427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2709504, while the sum is 52.

The spelling of 11668764427 in words is "eleven billion, six hundred sixty-eight million, seven hundred sixty-four thousand, four hundred twenty-seven".