427749353233 has 2 divisors, whose sum is σ = 427749353234. Its totient is φ = 427749353232.

The previous prime is 427749353221. The next prime is 427749353257. The reversal of 427749353233 is 332353947724.

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., 415848288769 + 11901064464 = 644863^2 + 109092^2 .

It is a cyclic number.

It is not a de Polignac number, because 427749353233 - 2⁵ = 427749353201 is a prime.

It is not a weakly prime, because it can be changed into another prime (427749353263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213874676616 + 213874676617.

It is an arithmetic number, because the mean of its divisors is an integer number (213874676617).

Almost surely, 2^427749353233 is an apocalyptic number.

It is an amenable number.

427749353233 is a deficient number, since it is larger than the sum of its proper divisors (1).

427749353233 is an equidigital number, since it uses as much as digits as its factorization.

427749353233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 52.

The spelling of 427749353233 in words is "four hundred twenty-seven billion, seven hundred forty-nine million, three hundred fifty-three thousand, two hundred thirty-three".