6458630138 has 32 divisors (see below), whose sum is σ = 10842076800. Its totient is φ = 2871101376.

The previous prime is 6458630137. The next prime is 6458630153. The reversal of 6458630138 is 8310368546.

It is not an unprimeable number, because it can be changed into a prime (6458630137) 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, 23393 + ... + 116036.

It is an arithmetic number, because the mean of its divisors is an integer number (338814900).

Almost surely, 2^6458630138 is an apocalyptic number.

6458630138 is a deficient number, since it is larger than the sum of its proper divisors (4383446662).

6458630138 is a wasteful number, since it uses less digits than its factorization.

6458630138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139526.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 6458630138 is about 80365.6029530047. The cubic root of 6458630138 is about 1862.2878289787.

The spelling of 6458630138 in words is "six billion, four hundred fifty-eight million, six hundred thirty thousand, one hundred thirty-eight".