33742367985497 has 2 divisors, whose sum is σ = 33742367985498. Its totient is φ = 33742367985496.

The previous prime is 33742367985461. The next prime is 33742367985509. The reversal of 33742367985497 is 79458976324733.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21979416144841 + 11762951840656 = 4688221^2 + 3429716^2 .

It is a cyclic number.

It is not a de Polignac number, because 33742367985497 - 2¹⁸ = 33742367723353 is a prime.

It is a super-4 number, since 4×33742367985497⁴ (a number of 55 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (33742367955497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16871183992748 + 16871183992749.

It is an arithmetic number, because the mean of its divisors is an integer number (16871183992749).

Almost surely, 2^{33742367985497} is an apocalyptic number.

It is an amenable number.

33742367985497 is a deficient number, since it is larger than the sum of its proper divisors (1).

33742367985497 is an equidigital number, since it uses as much as digits as its factorization.

33742367985497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5761082880, while the sum is 77.

The spelling of 33742367985497 in words is "thirty-three trillion, seven hundred forty-two billion, three hundred sixty-seven million, nine hundred eighty-five thousand, four hundred ninety-seven".