8348772505 has 8 divisors (see below), whose sum is σ = 10607852232. Its totient is φ = 6286134528.

The previous prime is 8348772499. The next prime is 8348772517. The reversal of 8348772505 is 5052778438.

It can be written as a sum of positive squares in 4 ways, for example, as 1053391936 + 7295380569 = 32456^2 + 85413^2 .

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 8348772505 - 2⁹ = 8348771993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49110342 + ... + 49110511.

It is an arithmetic number, because the mean of its divisors is an integer number (1325981529).

Almost surely, 2^8348772505 is an apocalyptic number.

8348772505 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8348772505 is a deficient number, since it is larger than the sum of its proper divisors (2259079727).

8348772505 is a wasteful number, since it uses less digits than its factorization.

8348772505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98220875.

The product of its (nonzero) digits is 1881600, while the sum is 49.

The square root of 8348772505 is about 91371.6176118164. The cubic root of 8348772505 is about 2028.6519482343.

The spelling of 8348772505 in words is "eight billion, three hundred forty-eight million, seven hundred seventy-two thousand, five hundred five".