8000000045 has 4 divisors (see below), whose sum is σ = 9600000060. Its totient is φ = 6400000032.

The previous prime is 8000000011. The next prime is 8000000051. The reversal of 8000000045 is 5400000008.

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 6399520009 + 1600480036 = 79997^2 + 40006^2 .

It is a cyclic number.

It is not a de Polignac number, because 8000000045 - 2²⁶ = 7932891181 is a prime.

It is a Curzon number.

It is a congruent number.

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, 800000000 + ... + 800000009.

It is an arithmetic number, because the mean of its divisors is an integer number (2400000015).

Almost surely, 2^8000000045 is an apocalyptic number.

It is an amenable number.

8000000045 is a deficient number, since it is larger than the sum of its proper divisors (1600000015).

8000000045 is a wasteful number, since it uses less digits than its factorization.

8000000045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600000014.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 8000000045 is about 89442.7193515492. The cubic root of 8000000045 is about 2000.0000037500. Note that the first 5 decimals are identical.

It can be divided in two parts, 80000000 and 45, that multiplied together give a square (3600000000 = 60000²).

The spelling of 8000000045 in words is "eight billion, forty-five", and thus it is an aban number and an uban number.