8274434643 has 12 divisors (see below), whose sum is σ = 12120299568. Its totient is φ = 5438595120.

The previous prime is 8274434629. The next prime is 8274434687. The reversal of 8274434643 is 3464344728.

8274434643 is a `hidden beast` number, since 82 + 74 + 43 + 464 + 3 = 666.

It is not a de Polignac number, because 8274434643 - 2⁴ = 8274434627 is a prime.

It is a super-2 number, since 2×8274434643² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8274434603) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 6473880 + ... + 6475157.

It is an arithmetic number, because the mean of its divisors is an integer number (1010024964).

Almost surely, 2^8274434643 is an apocalyptic number.

8274434643 is a deficient number, since it is larger than the sum of its proper divisors (3845864925).

8274434643 is a wasteful number, since it uses less digits than its factorization.

8274434643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12949114 (or 12949111 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 45.

The square root of 8274434643 is about 90963.9194571122. The cubic root of 8274434643 is about 2022.6129179720.

The spelling of 8274434643 in words is "eight billion, two hundred seventy-four million, four hundred thirty-four thousand, six hundred forty-three".