2189394901241 has 2 divisors, whose sum is σ = 2189394901242. Its totient is φ = 2189394901240.

The previous prime is 2189394901219. The next prime is 2189394901277. The reversal of 2189394901241 is 1421094939812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2189204323216 + 190578025 = 1479596^2 + 13805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2189394901241 is a prime.

It is not a weakly prime, because it can be changed into another prime (2189394906241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094697450620 + 1094697450621.

It is an arithmetic number, because the mean of its divisors is an integer number (1094697450621).

Almost surely, 2^{2189394901241} is an apocalyptic number.

It is an amenable number.

2189394901241 is a deficient number, since it is larger than the sum of its proper divisors (1).

2189394901241 is an equidigital number, since it uses as much as digits as its factorization.

2189394901241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The spelling of 2189394901241 in words is "two trillion, one hundred eighty-nine billion, three hundred ninety-four million, nine hundred one thousand, two hundred forty-one".