7643244434 has 32 divisors (see below), whose sum is σ = 13431177216. Its totient is φ = 3194076240.

The previous prime is 7643244431. The next prime is 7643244449. The reversal of 7643244434 is 4344423467.

It is a junction number, because it is equal to n+sod(n) for n = 7643244391 and 7643244400.

It is not an unprimeable number, because it can be changed into a prime (7643244431) 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 15 ways as a sum of consecutive naturals, for example, 156887 + ... + 199749.

It is an arithmetic number, because the mean of its divisors is an integer number (419724288).

Almost surely, 2^7643244434 is an apocalyptic number.

7643244434 is a deficient number, since it is larger than the sum of its proper divisors (5787932782).

7643244434 is a wasteful number, since it uses less digits than its factorization.

7643244434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43190.

The product of its digits is 774144, while the sum is 41.

The square root of 7643244434 is about 87425.6508926299. The cubic root of 7643244434 is about 1969.8171589434.

The spelling of 7643244434 in words is "seven billion, six hundred forty-three million, two hundred forty-four thousand, four hundred thirty-four".