83212294133785 has 8 divisors (see below), whose sum is σ = 99870450963336. Its totient is φ = 66559369971840.

The previous prime is 83212294133741. The next prime is 83212294133791. The reversal of 83212294133785 is 58733149221238.

It can be written as a sum of positive squares in 4 ways, for example, as 12926404999561 + 70285889134224 = 3595331^2 + 8383668^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83212294133785 - 2²¹ = 83212292036633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1308131914 + ... + 1308195523.

It is an arithmetic number, because the mean of its divisors is an integer number (12483806370417).

Almost surely, 2^{83212294133785} is an apocalyptic number.

It is an amenable number.

83212294133785 is a deficient number, since it is larger than the sum of its proper divisors (16658156829551).

83212294133785 is a wasteful number, since it uses less digits than its factorization.

83212294133785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2616333803.

The product of its digits is 17418240, while the sum is 58.

The spelling of 83212294133785 in words is "eighty-three trillion, two hundred twelve billion, two hundred ninety-four million, one hundred thirty-three thousand, seven hundred eighty-five".