6281909442 has 96 divisors (see below), whose sum is σ = 14133480816. Its totient is φ = 2015539200.

The previous prime is 6281909407. The next prime is 6281909489. The reversal of 6281909442 is 2449091826.

6281909442 is a `hidden beast` number, since 628 + 19 + 0 + 9 + 4 + 4 + 2 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 12595401 + 6269314041 = 3549^2 + 79179^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14507658 + ... + 14508090.

Almost surely, 2^6281909442 is an apocalyptic number.

6281909442 is an abundant number, since it is smaller than the sum of its proper divisors (7851571374).

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

6281909442 is a wasteful number, since it uses less digits than its factorization.

6281909442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 6281909442 is about 79258.4976012036. The cubic root of 6281909442 is about 1845.1452398497.

The spelling of 6281909442 in words is "six billion, two hundred eighty-one million, nine hundred nine thousand, four hundred forty-two".