1109396651841 has 45 divisors (see below), whose sum is σ = 1703786520051. Its totient is φ = 719381130768.

The previous prime is 1109396651819. The next prime is 1109396651849. The reversal of 1109396651841 is 1481566939011.

The square root of 1109396651841 is 1053279.

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

1109396651841 is a `hidden beast` number, since 1 + 10 + 9 + 396 + 65 + 184 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 992703359025 + 116693292816 = 996345^2 + 341604^2 .

It is not a de Polignac number, because 1109396651841 - 2¹⁵ = 1109396619073 is a prime.

It is a super-2 number, since 2×1109396651841² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1109396651849) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 350740326 + ... + 350743488.

Almost surely, 2^{1109396651841} is an apocalyptic number.

1109396651841 is the 1053279-th square number.

1109396651841 is the 526640-th centered octagonal number.

It is an amenable number.

1109396651841 is a deficient number, since it is larger than the sum of its proper divisors (594389868210).

1109396651841 is an frugal number, since it uses more digits than its factorization.

1109396651841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6412 (or 3203 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The spelling of 1109396651841 in words is "one trillion, one hundred nine billion, three hundred ninety-six million, six hundred fifty-one thousand, eight hundred forty-one".