228376081949 has 2 divisors, whose sum is σ = 228376081950. Its totient is φ = 228376081948.

The previous prime is 228376081933. The next prime is 228376082021. The reversal of 228376081949 is 949180673822.

It is a happy number.

228376081949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142223265625 + 86152816324 = 377125^2 + 293518^2 .

It is a cyclic number.

It is not a de Polignac number, because 228376081949 - 2⁴ = 228376081933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228376081919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114188040974 + 114188040975.

It is an arithmetic number, because the mean of its divisors is an integer number (114188040975).

Almost surely, 2^228376081949 is an apocalyptic number.

It is an amenable number.

228376081949 is a deficient number, since it is larger than the sum of its proper divisors (1).

228376081949 is an equidigital number, since it uses as much as digits as its factorization.

228376081949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10450944, while the sum is 59.

The spelling of 228376081949 in words is "two hundred twenty-eight billion, three hundred seventy-six million, eighty-one thousand, nine hundred forty-nine".