84206941145 has 4 divisors (see below), whose sum is σ = 101048329380. Its totient is φ = 67365552912.

The previous prime is 84206941129. The next prime is 84206941201. The reversal of 84206941145 is 54114960248.

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

It can be written as a sum of positive squares in 2 ways, for example, as 62765781961 + 21441159184 = 250531^2 + 146428^2 .

It is a cyclic number.

It is not a de Polignac number, because 84206941145 - 2⁴ = 84206941129 is a prime.

It is a super-2 number, since 2×84206941145² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84206941096 and 84206941105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8420694110 + ... + 8420694119.

It is an arithmetic number, because the mean of its divisors is an integer number (25262082345).

Almost surely, 2^84206941145 is an apocalyptic number.

It is an amenable number.

84206941145 is a deficient number, since it is larger than the sum of its proper divisors (16841388235).

84206941145 is a wasteful number, since it uses less digits than its factorization.

84206941145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16841388234.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 84206941145 in words is "eighty-four billion, two hundred six million, nine hundred forty-one thousand, one hundred forty-five".