2180107104949 has 2 divisors, whose sum is σ = 2180107104950. Its totient is φ = 2180107104948.

The previous prime is 2180107104883. The next prime is 2180107105027. The reversal of 2180107104949 is 9494017010812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1211815680625 + 968291424324 = 1100825^2 + 984018^2 .

It is a cyclic number.

It is not a de Polignac number, because 2180107104949 - 2¹³ = 2180107096757 is a prime.

It is a super-2 number, since 2×2180107104949² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2180107104899 and 2180107104908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2180107104649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1090053552474 + 1090053552475.

It is an arithmetic number, because the mean of its divisors is an integer number (1090053552475).

Almost surely, 2^{2180107104949} is an apocalyptic number.

It is an amenable number.

2180107104949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2180107104949 is an equidigital number, since it uses as much as digits as its factorization.

2180107104949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 46.

The spelling of 2180107104949 in words is "two trillion, one hundred eighty billion, one hundred seven million, one hundred four thousand, nine hundred forty-nine".