33640464031 has 2 divisors, whose sum is σ = 33640464032. Its totient is φ = 33640464030.

The previous prime is 33640464023. The next prime is 33640464071. The reversal of 33640464031 is 13046404633.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 33640464031 - 2³ = 33640464023 is a prime.

It is a super-2 number, since 2×33640464031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33640464071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16820232015 + 16820232016.

It is an arithmetic number, because the mean of its divisors is an integer number (16820232016).

Almost surely, 2^33640464031 is an apocalyptic number.

33640464031 is a deficient number, since it is larger than the sum of its proper divisors (1).

33640464031 is an equidigital number, since it uses as much as digits as its factorization.

33640464031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 34.

Adding to 33640464031 its reverse (13046404633), we get a palindrome (46686868664).

The spelling of 33640464031 in words is "thirty-three billion, six hundred forty million, four hundred sixty-four thousand, thirty-one".