33889897799 has 4 divisors (see below), whose sum is σ = 34085793336. Its totient is φ = 33694002264.

The previous prime is 33889897777. The next prime is 33889897807. The reversal of 33889897799 is 99779898833.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33889897799 - 2²⁴ = 33873120583 is a prime.

It is a super-2 number, since 2×33889897799² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33889897739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97947509 + ... + 97947854.

It is an arithmetic number, because the mean of its divisors is an integer number (8521448334).

Almost surely, 2^33889897799 is an apocalyptic number.

33889897799 is a deficient number, since it is larger than the sum of its proper divisors (195895537).

33889897799 is a wasteful number, since it uses less digits than its factorization.

33889897799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195895536.

The product of its digits is 1481421312, while the sum is 80.

The spelling of 33889897799 in words is "thirty-three billion, eight hundred eighty-nine million, eight hundred ninety-seven thousand, seven hundred ninety-nine".