4231556069773 has 2 divisors, whose sum is σ = 4231556069774. Its totient is φ = 4231556069772.

The previous prime is 4231556069753. The next prime is 4231556069837. The reversal of 4231556069773 is 3779606551324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3213834242089 + 1017721827684 = 1792717^2 + 1008822^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4231556069773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4231556069723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2115778034886 + 2115778034887.

It is an arithmetic number, because the mean of its divisors is an integer number (2115778034887).

Almost surely, 2^{4231556069773} is an apocalyptic number.

It is an amenable number.

4231556069773 is a deficient number, since it is larger than the sum of its proper divisors (1).

4231556069773 is an equidigital number, since it uses as much as digits as its factorization.

4231556069773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28576800, while the sum is 58.

The spelling of 4231556069773 in words is "four trillion, two hundred thirty-one billion, five hundred fifty-six million, sixty-nine thousand, seven hundred seventy-three".