108948446657 has 4 divisors (see below), whose sum is σ = 111004077780. Its totient is φ = 106892815536.

The previous prime is 108948446617. The next prime is 108948446683. The reversal of 108948446657 is 756644849801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 756644849801 = 127 ⋅5957833463.

It can be written as a sum of positive squares in 2 ways, for example, as 45012289921 + 63936156736 = 212161^2 + 252856^2 .

It is a cyclic number.

It is not a de Polignac number, because 108948446657 - 2¹⁰ = 108948445633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108948446657.

It is not an unprimeable number, because it can be changed into a prime (108948446617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1027815482 + ... + 1027815587.

It is an arithmetic number, because the mean of its divisors is an integer number (27751019445).

Almost surely, 2^108948446657 is an apocalyptic number.

It is an amenable number.

108948446657 is a deficient number, since it is larger than the sum of its proper divisors (2055631123).

108948446657 is an equidigital number, since it uses as much as digits as its factorization.

108948446657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055631122.

The product of its (nonzero) digits is 46448640, while the sum is 62.

The spelling of 108948446657 in words is "one hundred eight billion, nine hundred forty-eight million, four hundred forty-six thousand, six hundred fifty-seven".