7800252805 has 8 divisors (see below), whose sum is σ = 9361296000. Its totient is φ = 6239540496.

The previous prime is 7800252787. The next prime is 7800252809. The reversal of 7800252805 is 5082520087.

7800252805 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7800252805 - 2⁵ = 7800252773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7800252809) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 27505 + ... + 127894.

It is an arithmetic number, because the mean of its divisors is an integer number (1170162000).

Almost surely, 2^7800252805 is an apocalyptic number.

It is an amenable number.

7800252805 is a deficient number, since it is larger than the sum of its proper divisors (1561043195).

7800252805 is a wasteful number, since it uses less digits than its factorization.

7800252805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165443.

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 7800252805 is about 88319.0398781599. The cubic root of 7800252805 is about 1983.2139081320.

The spelling of 7800252805 in words is "seven billion, eight hundred million, two hundred fifty-two thousand, eight hundred five".