108459445477 has 4 divisors (see below), whose sum is σ = 114839412876. Its totient is φ = 102079478080.

The previous prime is 108459445447. The next prime is 108459445487. The reversal of 108459445477 is 774544954801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 774544954801 = 41 ⋅18891340361.

It can be written as a sum of positive squares in 2 ways, for example, as 89358547041 + 19100898436 = 298929^2 + 138206^2 .

It is a cyclic number.

It is not a de Polignac number, because 108459445477 - 2¹⁵ = 108459412709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108459445417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3189983674 + ... + 3189983707.

It is an arithmetic number, because the mean of its divisors is an integer number (28709853219).

Almost surely, 2^108459445477 is an apocalyptic number.

108459445477 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

108459445477 is a deficient number, since it is larger than the sum of its proper divisors (6379967399).

108459445477 is an equidigital number, since it uses as much as digits as its factorization.

108459445477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6379967398.

The product of its (nonzero) digits is 22579200, while the sum is 58.

The spelling of 108459445477 in words is "one hundred eight billion, four hundred fifty-nine million, four hundred forty-five thousand, four hundred seventy-seven".