6321474738 has 20 divisors (see below), whose sum is σ = 14164786350. Its totient is φ = 2107158192.

The previous prime is 6321474689. The next prime is 6321474739. The reversal of 6321474738 is 8374741236.

6321474738 is a `hidden beast` number, since 6 + 32 + 147 + 473 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5509053729 + 812421009 = 74223^2 + 28503^2 .

It is a super-2 number, since 2×6321474738² = 79922085726344337288, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6321474693 and 6321474702.

It is not an unprimeable number, because it can be changed into a prime (6321474739) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19510563 + ... + 19510886.

Almost surely, 2^6321474738 is an apocalyptic number.

6321474738 is an abundant number, since it is smaller than the sum of its proper divisors (7843311612).

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

6321474738 is a wasteful number, since it uses less digits than its factorization.

6321474738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39021463 (or 39021454 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 6321474738 is about 79507.7023815932. The cubic root of 6321474738 is about 1849.0108896211.

The spelling of 6321474738 in words is "six billion, three hundred twenty-one million, four hundred seventy-four thousand, seven hundred thirty-eight".