228719417393 has 2 divisors, whose sum is σ = 228719417394. Its totient is φ = 228719417392.

The previous prime is 228719417363. The next prime is 228719417429. The reversal of 228719417393 is 393714917822.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157583593024 + 71135824369 = 396968^2 + 266713^2 .

It is a cyclic number.

It is not a de Polignac number, because 228719417393 - 2²⁶ = 228652308529 is a prime.

It is not a weakly prime, because it can be changed into another prime (228719417323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114359708696 + 114359708697.

It is an arithmetic number, because the mean of its divisors is an integer number (114359708697).

Almost surely, 2^228719417393 is an apocalyptic number.

It is an amenable number.

228719417393 is a deficient number, since it is larger than the sum of its proper divisors (1).

228719417393 is an equidigital number, since it uses as much as digits as its factorization.

228719417393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 56.

The spelling of 228719417393 in words is "two hundred twenty-eight billion, seven hundred nineteen million, four hundred seventeen thousand, three hundred ninety-three".