33228806447 has 2 divisors, whose sum is σ = 33228806448. Its totient is φ = 33228806446.

The previous prime is 33228806381. The next prime is 33228806453. The reversal of 33228806447 is 74460882233.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33228806447 - 2²⁸ = 32960370991 is a prime.

It is a super-2 number, since 2×33228806447² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33228806497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16614403223 + 16614403224.

It is an arithmetic number, because the mean of its divisors is an integer number (16614403224).

Almost surely, 2^33228806447 is an apocalyptic number.

33228806447 is a deficient number, since it is larger than the sum of its proper divisors (1).

33228806447 is an equidigital number, since it uses as much as digits as its factorization.

33228806447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 47.

The spelling of 33228806447 in words is "thirty-three billion, two hundred twenty-eight million, eight hundred six thousand, four hundred forty-seven".