82045215043 has 4 divisors (see below), whose sum is σ = 89503870968. Its totient is φ = 74586559120.

The previous prime is 82045215037. The next prime is 82045215053. The reversal of 82045215043 is 34051254028.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82045215043 is a prime.

It is a super-2 number, since 2×82045215043² (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 (82045215053) 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, 3729327946 + ... + 3729327967.

It is an arithmetic number, because the mean of its divisors is an integer number (22375967742).

Almost surely, 2^82045215043 is an apocalyptic number.

82045215043 is a deficient number, since it is larger than the sum of its proper divisors (7458655925).

82045215043 is a wasteful number, since it uses less digits than its factorization.

82045215043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7458655924.

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 82045215043 in words is "eighty-two billion, forty-five million, two hundred fifteen thousand, forty-three".