105611050004989 has 2 divisors, whose sum is σ = 105611050004990. Its totient is φ = 105611050004988.

The previous prime is 105611050004963. The next prime is 105611050005053. The reversal of 105611050004989 is 989400050116501.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100814993804889 + 4796056200100 = 10040667^2 + 2189990^2 .

It is a cyclic number.

It is not a de Polignac number, because 105611050004989 - 2¹³ = 105611049996797 is a prime.

It is a super-2 number, since 2×105611050004989² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105611050004939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52805525002494 + 52805525002495.

It is an arithmetic number, because the mean of its divisors is an integer number (52805525002495).

Almost surely, 2^{105611050004989} is an apocalyptic number.

It is an amenable number.

105611050004989 is a deficient number, since it is larger than the sum of its proper divisors (1).

105611050004989 is an equidigital number, since it uses as much as digits as its factorization.

105611050004989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 49.

The spelling of 105611050004989 in words is "one hundred five trillion, six hundred eleven billion, fifty million, four thousand, nine hundred eighty-nine".