108727997029 has 2 divisors, whose sum is σ = 108727997030. Its totient is φ = 108727997028.

The previous prime is 108727997023. The next prime is 108727997057. The reversal of 108727997029 is 920799727801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57983676804 + 50744320225 = 240798^2 + 225265^2 .

It is an emirp because it is prime and its reverse (920799727801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108727997029 - 2⁵ = 108727996997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108727997023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54363998514 + 54363998515.

It is an arithmetic number, because the mean of its divisors is an integer number (54363998515).

Almost surely, 2^108727997029 is an apocalyptic number.

It is an amenable number.

108727997029 is a deficient number, since it is larger than the sum of its proper divisors (1).

108727997029 is an equidigital number, since it uses as much as digits as its factorization.

108727997029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8001504, while the sum is 61.

The spelling of 108727997029 in words is "one hundred eight billion, seven hundred twenty-seven million, nine hundred ninety-seven thousand, twenty-nine".