33871028713 has 2 divisors, whose sum is σ = 33871028714. Its totient is φ = 33871028712.

The previous prime is 33871028671. The next prime is 33871028767. The reversal of 33871028713 is 31782017833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33869617369 + 1411344 = 184037^2 + 1188^2 .

It is a cyclic number.

It is not a de Polignac number, because 33871028713 - 2⁹ = 33871028201 is a prime.

It is a super-2 number, since 2×33871028713² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33871028713.

It is not a weakly prime, because it can be changed into another prime (33871428713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16935514356 + 16935514357.

It is an arithmetic number, because the mean of its divisors is an integer number (16935514357).

Almost surely, 2^33871028713 is an apocalyptic number.

It is an amenable number.

33871028713 is a deficient number, since it is larger than the sum of its proper divisors (1).

33871028713 is an equidigital number, since it uses as much as digits as its factorization.

33871028713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 33871028713 in words is "thirty-three billion, eight hundred seventy-one million, twenty-eight thousand, seven hundred thirteen".