1108478382649 has 9 divisors (see below), whose sum is σ = 1218422853039. Its totient is φ = 1007697092160.

The previous prime is 1108478382643. The next prime is 1108478382679. The reversal of 1108478382649 is 9462838748011.

The square root of 1108478382649 is 1052843.

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

It can be written as a sum of positive squares in only one way, i.e., 595868205625 + 512610177024 = 771925^2 + 715968^2 .

It is not a de Polignac number, because 1108478382649 - 2¹³ = 1108478374457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1108478382643) 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, 11533417 + ... + 11629129.

Almost surely, 2^{1108478382649} is an apocalyptic number.

1108478382649 is the 1052843-rd square number.

1108478382649 is the 526422-nd centered octagonal number.

It is an amenable number.

1108478382649 is a deficient number, since it is larger than the sum of its proper divisors (109944470390).

1108478382649 is an frugal number, since it uses more digits than its factorization.

1108478382649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191448 (or 95724 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 61.

The spelling of 1108478382649 in words is "one trillion, one hundred eight billion, four hundred seventy-eight million, three hundred eighty-two thousand, six hundred forty-nine".