Search a number
444618881104861 is a prime number
BaseRepresentation
bin110010100011000001110011…
…0011101111111101111011101
32011022021011001021212101112201
41211012003212131333233131
5431234113432030323421
64213343032203131501
7162436440233423251
oct14506034635775735
92138234037771481
10444618881104861
1111973a899214421
1241a4a14b813b91
13161124c41aab28
147bb1950b72261
153660856574b91
hex19460e677fbdd

444618881104861 has 2 divisors, whose sum is σ = 444618881104862. Its totient is φ = 444618881104860.

The previous prime is 444618881104843. The next prime is 444618881104873. The reversal of 444618881104861 is 168401188816444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 442451452320900 + 2167428783961 = 21034530^2 + 1472219^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-444618881104861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 444618881104793 and 444618881104802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444618881104661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222309440552430 + 222309440552431.

It is an arithmetic number, because the mean of its divisors is an integer number (222309440552431).

Almost surely, 2444618881104861 is an apocalyptic number.

It is an amenable number.

444618881104861 is a deficient number, since it is larger than the sum of its proper divisors (1).

444618881104861 is an equidigital number, since it uses as much as digits as its factorization.

444618881104861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37748736, while the sum is 64.

The spelling of 444618881104861 in words is "four hundred forty-four trillion, six hundred eighteen billion, eight hundred eighty-one million, one hundred four thousand, eight hundred sixty-one".