2118049541009 has 2 divisors, whose sum is σ = 2118049541010. Its totient is φ = 2118049541008.

The previous prime is 2118049540991. The next prime is 2118049541029. The reversal of 2118049541009 is 9001459408112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1182906388225 + 935143152784 = 1087615^2 + 967028^2 .

It is a cyclic number.

It is not a de Polignac number, because 2118049541009 - 2¹² = 2118049536913 is a prime.

It is a super-2 number, since 2×2118049541009² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2118049541029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059024770504 + 1059024770505.

It is an arithmetic number, because the mean of its divisors is an integer number (1059024770505).

Almost surely, 2^{2118049541009} is an apocalyptic number.

It is an amenable number.

2118049541009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2118049541009 is an equidigital number, since it uses as much as digits as its factorization.

2118049541009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 44.

The spelling of 2118049541009 in words is "two trillion, one hundred eighteen billion, forty-nine million, five hundred forty-one thousand, nine".