108905767769 has 2 divisors, whose sum is σ = 108905767770. Its totient is φ = 108905767768.

The previous prime is 108905767703. The next prime is 108905767777. The reversal of 108905767769 is 967767509801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69175312144 + 39730455625 = 263012^2 + 199325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108905767769 is a prime.

It is a super-2 number, since 2×108905767769² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (108905769769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54452883884 + 54452883885.

It is an arithmetic number, because the mean of its divisors is an integer number (54452883885).

Almost surely, 2^108905767769 is an apocalyptic number.

It is an amenable number.

108905767769 is a deficient number, since it is larger than the sum of its proper divisors (1).

108905767769 is an equidigital number, since it uses as much as digits as its factorization.

108905767769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40007520, while the sum is 65.

The spelling of 108905767769 in words is "one hundred eight billion, nine hundred five million, seven hundred sixty-seven thousand, seven hundred sixty-nine".