33884416861 has 4 divisors (see below), whose sum is σ = 33892789500. Its totient is φ = 33876044224.

The previous prime is 33884416849. The next prime is 33884416879. The reversal of 33884416861 is 16861448833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16861448833 = 23 ⋅733106471.

It can be written as a sum of positive squares in 2 ways, for example, as 10612914361 + 23271502500 = 103019^2 + 152550^2 .

It is a cyclic number.

It is not a de Polignac number, because 33884416861 - 2⁵ = 33884416829 is a prime.

It is a super-2 number, since 2×33884416861² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33884416799 and 33884416808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33884416801) 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, 4180246 + ... + 4188343.

It is an arithmetic number, because the mean of its divisors is an integer number (8473197375).

Almost surely, 2^33884416861 is an apocalyptic number.

It is an amenable number.

33884416861 is a deficient number, since it is larger than the sum of its proper divisors (8372639).

33884416861 is an equidigital number, since it uses as much as digits as its factorization.

33884416861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8372638.

The product of its digits is 2654208, while the sum is 52.

The spelling of 33884416861 in words is "thirty-three billion, eight hundred eighty-four million, four hundred sixteen thousand, eight hundred sixty-one".