6344542906 has 12 divisors (see below), whose sum is σ = 10305190062. Its totient is φ = 2928250416.

The previous prime is 6344542903. The next prime is 6344542951. The reversal of 6344542906 is 6092454436.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2048920225 + 4295622681 = 45265^2 + 65541^2 .

It is a super-3 number, since 3×6344542906³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (6344542901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9385081 + ... + 9385756.

Almost surely, 2^6344542906 is an apocalyptic number.

6344542906 is a deficient number, since it is larger than the sum of its proper divisors (3960647156).

6344542906 is a wasteful number, since it uses less digits than its factorization.

6344542906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18770865 (or 18770852 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

The square root of 6344542906 is about 79652.6390397707. The cubic root of 6344542906 is about 1851.2572808203.

The spelling of 6344542906 in words is "six billion, three hundred forty-four million, five hundred forty-two thousand, nine hundred six".