109188813827 has 2 divisors, whose sum is σ = 109188813828. Its totient is φ = 109188813826.

The previous prime is 109188813823. The next prime is 109188813869. The reversal of 109188813827 is 728318881901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109188813827 - 2² = 109188813823 is a prime.

It is not a weakly prime, because it can be changed into another prime (109188813821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54594406913 + 54594406914.

It is an arithmetic number, because the mean of its divisors is an integer number (54594406914).

Almost surely, 2^109188813827 is an apocalyptic number.

109188813827 is a deficient number, since it is larger than the sum of its proper divisors (1).

109188813827 is an equidigital number, since it uses as much as digits as its factorization.

109188813827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 56.

The spelling of 109188813827 in words is "one hundred nine billion, one hundred eighty-eight million, eight hundred thirteen thousand, eight hundred twenty-seven".