33888800989 has 2 divisors, whose sum is σ = 33888800990. Its totient is φ = 33888800988.

The previous prime is 33888800971. The next prime is 33888801019. The reversal of 33888800989 is 98900888833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32202302500 + 1686498489 = 179450^2 + 41067^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33888800989 is a prime.

It is a super-2 number, since 2×33888800989² (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 33888800989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33888800089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16944400494 + 16944400495.

It is an arithmetic number, because the mean of its divisors is an integer number (16944400495).

Almost surely, 2^33888800989 is an apocalyptic number.

It is an amenable number.

33888800989 is a deficient number, since it is larger than the sum of its proper divisors (1).

33888800989 is an equidigital number, since it uses as much as digits as its factorization.

33888800989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23887872, while the sum is 64.

The spelling of 33888800989 in words is "thirty-three billion, eight hundred eighty-eight million, eight hundred thousand, nine hundred eighty-nine".