83533838797 has 4 divisors (see below), whose sum is σ = 83576179260. Its totient is φ = 83491498336.

The previous prime is 83533838777. The next prime is 83533838813. The reversal of 83533838797 is 79783833538.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79783833538 = 2 ⋅39891916769.

It can be written as a sum of positive squares in 2 ways, for example, as 23073913801 + 60459924996 = 151901^2 + 245886^2 .

It is a cyclic number.

It is not a de Polignac number, because 83533838797 - 2²³ = 83525450189 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 (83533838777) 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, 21167272 + ... + 21171217.

It is an arithmetic number, because the mean of its divisors is an integer number (20894044815).

Almost surely, 2^83533838797 is an apocalyptic number.

It is an amenable number.

83533838797 is a deficient number, since it is larger than the sum of its proper divisors (42340463).

83533838797 is a wasteful number, since it uses less digits than its factorization.

83533838797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42340462.

The product of its digits is 91445760, while the sum is 64.

The spelling of 83533838797 in words is "eighty-three billion, five hundred thirty-three million, eight hundred thirty-eight thousand, seven hundred ninety-seven".