8042500705 has 4 divisors (see below), whose sum is σ = 9651000852. Its totient is φ = 6434000560.

The previous prime is 8042500691. The next prime is 8042500721. The reversal of 8042500705 is 5070052408.

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 6067942609 + 1974558096 = 77897^2 + 44436^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8042500705 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

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, 804250066 + ... + 804250075.

It is an arithmetic number, because the mean of its divisors is an integer number (2412750213).

Almost surely, 2^8042500705 is an apocalyptic number.

It is an amenable number.

8042500705 is a deficient number, since it is larger than the sum of its proper divisors (1608500147).

8042500705 is a wasteful number, since it uses less digits than its factorization.

8042500705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608500146.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 8042500705 is about 89679.9905497319. The cubic root of 8042500705 is about 2003.5354719530.

The spelling of 8042500705 in words is "eight billion, forty-two million, five hundred thousand, seven hundred five".