108278509249 has 9 divisors (see below), whose sum is σ = 109179947361. Its totient is φ = 107384461380.

The previous prime is 108278509237. The next prime is 108278509303. The reversal of 108278509249 is 942905872801.

The square root of 108278509249 is 329057.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 108278509249 - 2⁵ = 108278509217 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 108278509249.

It is not an unprimeable number, because it can be changed into a prime (108278509949) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 41788944 + ... + 41791534.

Almost surely, 2^108278509249 is an apocalyptic number.

108278509249 is the 329057-th square number.

108278509249 is the 164529-th centered octagonal number.

It is an amenable number.

108278509249 is a deficient number, since it is larger than the sum of its proper divisors (901438112).

108278509249 is an frugal number, since it uses more digits than its factorization.

108278509249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5436 (or 2718 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 108278509249 in words is "one hundred eight billion, two hundred seventy-eight million, five hundred nine thousand, two hundred forty-nine".