83394433779242 has 4 divisors (see below), whose sum is σ = 125091650668866. Its totient is φ = 41697216889620.

The previous prime is 83394433779233. The next prime is 83394433779253. The reversal of 83394433779242 is 24297733449338.

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

It can be written as a sum of positive squares in only one way, i.e., 44475414282121 + 38919019497121 = 6668989^2 + 6238511^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20848608444809 + ... + 20848608444812.

Almost surely, 2^{83394433779242} is an apocalyptic number.

83394433779242 is a deficient number, since it is larger than the sum of its proper divisors (41697216889624).

83394433779242 is a wasteful number, since it uses less digits than its factorization.

83394433779242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41697216889623.

The product of its digits is 658409472, while the sum is 68.

The spelling of 83394433779242 in words is "eighty-three trillion, three hundred ninety-four billion, four hundred thirty-three million, seven hundred seventy-nine thousand, two hundred forty-two".