4247276643 has 6 divisors (see below), whose sum is σ = 6134955164. Its totient is φ = 2831517756.

The previous prime is 4247276611. The next prime is 4247276653. The reversal of 4247276643 is 3466727424.

4247276643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4247276643 - 2⁵ = 4247276611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4247276653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 235959805 + ... + 235959822.

Almost surely, 2^4247276643 is an apocalyptic number.

4247276643 is a deficient number, since it is larger than the sum of its proper divisors (1887678521).

4247276643 is a wasteful number, since it uses less digits than its factorization.

4247276643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471919633 (or 471919630 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 45.

The square root of 4247276643 is about 65171.1335101669. The cubic root of 4247276643 is about 1619.4598416337.

The spelling of 4247276643 in words is "four billion, two hundred forty-seven million, two hundred seventy-six thousand, six hundred forty-three".