8311455485 has 4 divisors (see below), whose sum is σ = 9973746588. Its totient is φ = 6649164384.

The previous prime is 8311455403. The next prime is 8311455487. The reversal of 8311455485 is 5845541138.

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 4847779876 + 3463675609 = 69626^2 + 58853^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8311455485 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8311455487) 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, 831145544 + ... + 831145553.

It is an arithmetic number, because the mean of its divisors is an integer number (2493436647).

Almost surely, 2^8311455485 is an apocalyptic number.

It is an amenable number.

8311455485 is a deficient number, since it is larger than the sum of its proper divisors (1662291103).

8311455485 is a wasteful number, since it uses less digits than its factorization.

8311455485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662291102.

The product of its digits is 384000, while the sum is 44.

The square root of 8311455485 is about 91167.1842550816. The cubic root of 8311455485 is about 2025.6249037192.

The spelling of 8311455485 in words is "eight billion, three hundred eleven million, four hundred fifty-five thousand, four hundred eighty-five".