1100518615849 has 2 divisors, whose sum is σ = 1100518615850. Its totient is φ = 1100518615848.

The previous prime is 1100518615843. The next prime is 1100518615891. The reversal of 1100518615849 is 9485168150011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1023294096400 + 77224519449 = 1011580^2 + 277893^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100518615849 - 2⁵ = 1100518615817 is a prime.

It is a super-2 number, since 2×1100518615849² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1100518615843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550259307924 + 550259307925.

It is an arithmetic number, because the mean of its divisors is an integer number (550259307925).

Almost surely, 2^{1100518615849} is an apocalyptic number.

It is an amenable number.

1100518615849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100518615849 is an equidigital number, since it uses as much as digits as its factorization.

1100518615849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 49.

The spelling of 1100518615849 in words is "one trillion, one hundred billion, five hundred eighteen million, six hundred fifteen thousand, eight hundred forty-nine".