33031818139 has 2 divisors, whose sum is σ = 33031818140. Its totient is φ = 33031818138.

The previous prime is 33031818121. The next prime is 33031818229. The reversal of 33031818139 is 93181813033.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 33031818139 - 2¹⁹ = 33031293851 is a prime.

It is a super-2 number, since 2×33031818139² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33031818439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16515909069 + 16515909070.

It is an arithmetic number, because the mean of its divisors is an integer number (16515909070).

Almost surely, 2^33031818139 is an apocalyptic number.

33031818139 is a deficient number, since it is larger than the sum of its proper divisors (1).

33031818139 is an equidigital number, since it uses as much as digits as its factorization.

33031818139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 33031818139 in words is "thirty-three billion, thirty-one million, eight hundred eighteen thousand, one hundred thirty-nine".