33670000649 has 2 divisors, whose sum is σ = 33670000650. Its totient is φ = 33670000648.

The previous prime is 33670000627. The next prime is 33670000667. The reversal of 33670000649 is 94600007633.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32618166025 + 1051834624 = 180605^2 + 32432^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33670000649 is a prime.

It is a super-2 number, since 2×33670000649² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33670000669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16835000324 + 16835000325.

It is an arithmetic number, because the mean of its divisors is an integer number (16835000325).

Almost surely, 2^33670000649 is an apocalyptic number.

It is an amenable number.

33670000649 is a deficient number, since it is larger than the sum of its proper divisors (1).

33670000649 is an equidigital number, since it uses as much as digits as its factorization.

33670000649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 38.

The spelling of 33670000649 in words is "thirty-three billion, six hundred seventy million, six hundred forty-nine", and thus it is an aban number.