227155853989 has 2 divisors, whose sum is σ = 227155853990. Its totient is φ = 227155853988.

The previous prime is 227155853957. The next prime is 227155853993. The reversal of 227155853989 is 989358551722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201908232964 + 25247621025 = 449342^2 + 158895^2 .

It is a cyclic number.

It is not a de Polignac number, because 227155853989 - 2⁵ = 227155853957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 227155853989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227155853909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113577926994 + 113577926995.

It is an arithmetic number, because the mean of its divisors is an integer number (113577926995).

Almost surely, 2^227155853989 is an apocalyptic number.

It is an amenable number.

227155853989 is a deficient number, since it is larger than the sum of its proper divisors (1).

227155853989 is an equidigital number, since it uses as much as digits as its factorization.

227155853989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432000, while the sum is 64.

The spelling of 227155853989 in words is "two hundred twenty-seven billion, one hundred fifty-five million, eight hundred fifty-three thousand, nine hundred eighty-nine".