8280769855 has 4 divisors (see below), whose sum is σ = 9936923832. Its totient is φ = 6624615880.

The previous prime is 8280769811. The next prime is 8280769883. The reversal of 8280769855 is 5589670828.

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

It is a de Polignac number, because none of the positive numbers 2^k-8280769855 is a prime.

It is a super-2 number, since 2×8280769855² (a number of 21 digits) contains 22 as substring.

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 8280769855.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 828076981 + ... + 828076990.

It is an arithmetic number, because the mean of its divisors is an integer number (2484230958).

Almost surely, 2^8280769855 is an apocalyptic number.

8280769855 is a deficient number, since it is larger than the sum of its proper divisors (1656153977).

8280769855 is a wasteful number, since it uses less digits than its factorization.

8280769855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656153976.

The product of its (nonzero) digits is 9676800, while the sum is 58.

The square root of 8280769855 is about 90998.7354582469. The cubic root of 8280769855 is about 2023.1289819434.

The spelling of 8280769855 in words is "eight billion, two hundred eighty million, seven hundred sixty-nine thousand, eight hundred fifty-five".