6308466138 has 144 divisors (see below), whose sum is σ = 15539247360. Its totient is φ = 1917032832.

The previous prime is 6308466133. The next prime is 6308466163. The reversal of 6308466138 is 8316648036.

6308466138 is a `hidden beast` number, since 630 + 8 + 4 + 6 + 6 + 1 + 3 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6308466093 and 6308466102.

It is not an unprimeable number, because it can be changed into a prime (6308466133) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7309495 + ... + 7310357.

It is an arithmetic number, because the mean of its divisors is an integer number (107911440).

Almost surely, 2^6308466138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6308466138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7769623680).

6308466138 is an abundant number, since it is smaller than the sum of its proper divisors (9230781222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6308466138 is a wasteful number, since it uses less digits than its factorization.

6308466138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 6308466138 is about 79425.8530832373. The cubic root of 6308466138 is about 1847.7416941632.

The spelling of 6308466138 in words is "six billion, three hundred eight million, four hundred sixty-six thousand, one hundred thirty-eight".