4861044145 has 4 divisors (see below), whose sum is σ = 5833252980. Its totient is φ = 3888835312.

The previous prime is 4861044103. The next prime is 4861044157. The reversal of 4861044145 is 5414401684.

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 1607368464 + 3253675681 = 40092^2 + 57041^2 .

It is a cyclic number.

It is not a de Polignac number, because 4861044145 - 2⁷ = 4861044017 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486104410 + ... + 486104419.

It is an arithmetic number, because the mean of its divisors is an integer number (1458313245).

Almost surely, 2^4861044145 is an apocalyptic number.

It is an amenable number.

4861044145 is a deficient number, since it is larger than the sum of its proper divisors (972208835).

4861044145 is an equidigital number, since it uses as much as digits as its factorization.

4861044145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972208834.

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 4861044145 is about 69721.1886373146. The cubic root of 4861044145 is about 1693.9861492335.

The spelling of 4861044145 in words is "four billion, eight hundred sixty-one million, forty-four thousand, one hundred forty-five".