33850393939 has 6 divisors (see below), whose sum is σ = 35632837820. Its totient is φ = 32068034496.

The previous prime is 33850393937. The next prime is 33850393949. The reversal of 33850393939 is 93939305833.

It is not a de Polignac number, because 33850393939 - 2¹ = 33850393937 is a prime.

It is a super-2 number, since 2×33850393939² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33850393939.

It is not an unprimeable number, because it can be changed into a prime (33850393937) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 780867 + ... + 823075.

Almost surely, 2^33850393939 is an apocalyptic number.

33850393939 is a deficient number, since it is larger than the sum of its proper divisors (1782443881).

33850393939 is an frugal number, since it uses more digits than its factorization.

33850393939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84437 (or 42228 counting only the distinct ones).

The product of its (nonzero) digits is 7085880, while the sum is 55.

The spelling of 33850393939 in words is "thirty-three billion, eight hundred fifty million, three hundred ninety-three thousand, nine hundred thirty-nine".