8128625759 has 4 divisors (see below), whose sum is σ = 8158620960. Its totient is φ = 8098630560.

The previous prime is 8128625737. The next prime is 8128625761. The reversal of 8128625759 is 9575268218.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8128625759 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 8128625759.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8128625779) 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, 14997194 + ... + 14997735.

It is an arithmetic number, because the mean of its divisors is an integer number (2039655240).

Almost surely, 2^8128625759 is an apocalyptic number.

8128625759 is a deficient number, since it is larger than the sum of its proper divisors (29995201).

8128625759 is a wasteful number, since it uses less digits than its factorization.

8128625759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29995200.

The product of its digits is 2419200, while the sum is 53.

The square root of 8128625759 is about 90158.8917356464. The cubic root of 8128625759 is about 2010.6618744669.

The spelling of 8128625759 in words is "eight billion, one hundred twenty-eight million, six hundred twenty-five thousand, seven hundred fifty-nine".