8043112621 has 4 divisors (see below), whose sum is σ = 8043515100. Its totient is φ = 8042710144.

The previous prime is 8043112603. The next prime is 8043112631. The reversal of 8043112621 is 1262113408.

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 5522570596 + 2520542025 = 74314^2 + 50205^2 .

It is a cyclic number.

It is not a de Polignac number, because 8043112621 - 2⁵ = 8043112589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8043112621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8043112631) 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, 169606 + ... + 211783.

It is an arithmetic number, because the mean of its divisors is an integer number (2010878775).

Almost surely, 2^8043112621 is an apocalyptic number.

It is an amenable number.

8043112621 is a deficient number, since it is larger than the sum of its proper divisors (402479).

8043112621 is a wasteful number, since it uses less digits than its factorization.

8043112621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402478.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 8043112621 is about 89683.4021488926. The cubic root of 8043112621 is about 2003.5862838570.

The spelling of 8043112621 in words is "eight billion, forty-three million, one hundred twelve thousand, six hundred twenty-one".