4247438667 has 16 divisors (see below), whose sum is σ = 5680738560. Its totient is φ = 2822897952.

The previous prime is 4247438659. The next prime is 4247438677. The reversal of 4247438667 is 7668347424.

It is not a de Polignac number, because 4247438667 - 2³ = 4247438659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4247438647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1870809 + ... + 1873077.

It is an arithmetic number, because the mean of its divisors is an integer number (355046160).

Almost surely, 2^4247438667 is an apocalyptic number.

4247438667 is a deficient number, since it is larger than the sum of its proper divisors (1433299893).

4247438667 is a wasteful number, since it uses less digits than its factorization.

4247438667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3922.

The product of its digits is 5419008, while the sum is 51.

The square root of 4247438667 is about 65172.3765640014. The cubic root of 4247438667 is about 1619.4804342822.

The spelling of 4247438667 in words is "four billion, two hundred forty-seven million, four hundred thirty-eight thousand, six hundred sixty-seven".