6467442788 has 6 divisors (see below), whose sum is σ = 11318024886. Its totient is φ = 3233721392.

The previous prime is 6467442781. The next prime is 6467442803. The reversal of 6467442788 is 8872447646.

It can be written as a sum of positive squares in only one way, i.e., 6139035904 + 328406884 = 78352^2 + 18122^2 .

It is not an unprimeable number, because it can be changed into a prime (6467442781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808430345 + ... + 808430352.

It is an arithmetic number, because the mean of its divisors is an integer number (1886337481).

Almost surely, 2^6467442788 is an apocalyptic number.

It is an amenable number.

6467442788 is a deficient number, since it is larger than the sum of its proper divisors (4850582098).

6467442788 is a wasteful number, since it uses less digits than its factorization.

6467442788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616860701 (or 1616860699 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 56.

The square root of 6467442788 is about 80420.4127569612. The cubic root of 6467442788 is about 1863.1344601106.

The spelling of 6467442788 in words is "six billion, four hundred sixty-seven million, four hundred forty-two thousand, seven hundred eighty-eight".