33474738257 has 2 divisors, whose sum is σ = 33474738258. Its totient is φ = 33474738256.

The previous prime is 33474738221. The next prime is 33474738259. The reversal of 33474738257 is 75283747433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25104501136 + 8370237121 = 158444^2 + 91489^2 .

It is an emirp because it is prime and its reverse (75283747433) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33474738257 - 2²⁶ = 33407629393 is a prime.

It is a super-2 number, since 2×33474738257² (a number of 22 digits) contains 22 as substring.

Together with 33474738259, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 33474738199 and 33474738208.

It is not a weakly prime, because it can be changed into another prime (33474738259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16737369128 + 16737369129.

It is an arithmetic number, because the mean of its divisors is an integer number (16737369129).

Almost surely, 2^33474738257 is an apocalyptic number.

It is an amenable number.

33474738257 is a deficient number, since it is larger than the sum of its proper divisors (1).

33474738257 is an equidigital number, since it uses as much as digits as its factorization.

33474738257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11854080, while the sum is 53.

The spelling of 33474738257 in words is "thirty-three billion, four hundred seventy-four million, seven hundred thirty-eight thousand, two hundred fifty-seven".