83133916393 has 4 divisors (see below), whose sum is σ = 90691545168. Its totient is φ = 75576287620.

The previous prime is 83133916391. The next prime is 83133916403. The reversal of 83133916393 is 39361933138.

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 83133916393 - 2¹ = 83133916391 is a prime.

It is a super-2 number, since 2×83133916393² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83133916391) 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, 3778814371 + ... + 3778814392.

It is an arithmetic number, because the mean of its divisors is an integer number (22672886292).

Almost surely, 2^83133916393 is an apocalyptic number.

It is an amenable number.

83133916393 is a deficient number, since it is larger than the sum of its proper divisors (7557628775).

83133916393 is a wasteful number, since it uses less digits than its factorization.

83133916393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7557628774.

The product of its digits is 944784, while the sum is 49.

The spelling of 83133916393 in words is "eighty-three billion, one hundred thirty-three million, nine hundred sixteen thousand, three hundred ninety-three".