33946475081 has 2 divisors, whose sum is σ = 33946475082. Its totient is φ = 33946475080.

The previous prime is 33946475047. The next prime is 33946475107. The reversal of 33946475081 is 18057464933.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29242710025 + 4703765056 = 171005^2 + 68584^2 .

It is a cyclic number.

It is not a de Polignac number, because 33946475081 - 2¹⁰ = 33946474057 is a prime.

It is a super-2 number, since 2×33946475081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33946475881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16973237540 + 16973237541.

It is an arithmetic number, because the mean of its divisors is an integer number (16973237541).

Almost surely, 2^33946475081 is an apocalyptic number.

It is an amenable number.

33946475081 is a deficient number, since it is larger than the sum of its proper divisors (1).

33946475081 is an equidigital number, since it uses as much as digits as its factorization.

33946475081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 33946475081 in words is "thirty-three billion, nine hundred forty-six million, four hundred seventy-five thousand, eighty-one".