33870888109 has 2 divisors, whose sum is σ = 33870888110. Its totient is φ = 33870888108.

The previous prime is 33870888049. The next prime is 33870888131. The reversal of 33870888109 is 90188807833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31542825609 + 2328062500 = 177603^2 + 48250^2 .

It is a cyclic number.

It is not a de Polignac number, because 33870888109 - 2³³ = 25280953517 is a prime.

It is a super-2 number, since 2×33870888109² (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 33870888109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33870889109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16935444054 + 16935444055.

It is an arithmetic number, because the mean of its divisors is an integer number (16935444055).

Almost surely, 2^33870888109 is an apocalyptic number.

It is an amenable number.

33870888109 is a deficient number, since it is larger than the sum of its proper divisors (1).

33870888109 is an equidigital number, since it uses as much as digits as its factorization.

33870888109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 33870888109 in words is "thirty-three billion, eight hundred seventy million, eight hundred eighty-eight thousand, one hundred nine".