83213539245 has 80 divisors (see below), whose sum is σ = 152487878400. Its totient is φ = 43394645376.

The previous prime is 83213539231. The next prime is 83213539247. The reversal of 83213539245 is 54293531238.

83213539245 is a `hidden beast` number, since 8 + 3 + 213 + 5 + 392 + 45 = 666.

It is not a de Polignac number, because 83213539245 - 2⁴ = 83213539229 is a prime.

It is a super-2 number, since 2×83213539245² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 83213539245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83213539247) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 37098094 + ... + 37100336.

It is an arithmetic number, because the mean of its divisors is an integer number (1906098480).

Almost surely, 2^83213539245 is an apocalyptic number.

It is an amenable number.

83213539245 is a deficient number, since it is larger than the sum of its proper divisors (69274339155).

83213539245 is a wasteful number, since it uses less digits than its factorization.

83213539245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4256 (or 4247 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The spelling of 83213539245 in words is "eighty-three billion, two hundred thirteen million, five hundred thirty-nine thousand, two hundred forty-five".