861121406333 has 4 divisors (see below), whose sum is σ = 861123326688. Its totient is φ = 861119485980.

The previous prime is 861121406323. The next prime is 861121406357. The reversal of 861121406333 is 333604121168.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 861121406333 - 2⁴ = 861121406317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861121406323) 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, 110168 + ... + 1316958.

It is an arithmetic number, because the mean of its divisors is an integer number (215280831672).

Almost surely, 2^861121406333 is an apocalyptic number.

It is an amenable number.

861121406333 is a deficient number, since it is larger than the sum of its proper divisors (1920355).

861121406333 is a wasteful number, since it uses less digits than its factorization.

861121406333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920354.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 861121406333 in words is "eight hundred sixty-one billion, one hundred twenty-one million, four hundred six thousand, three hundred thirty-three".