6438674610 has 40 divisors (see below), whose sum is σ = 17312882796. Its totient is φ = 1716979680.

The previous prime is 6438674597. The next prime is 6438674629. The reversal of 6438674610 is 164768346.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6328361601 + 110313009 = 79551^2 + 10503^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3973681 + ... + 3975300.

Almost surely, 2^6438674610 is an apocalyptic number.

6438674610 is an abundant number, since it is smaller than the sum of its proper divisors (10874208186).

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

6438674610 is a wasteful number, since it uses less digits than its factorization.

6438674610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7949000 (or 7948991 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 6438674610 is about 80241.3522443385. The cubic root of 6438674610 is about 1860.3678512829.

The spelling of 6438674610 in words is "six billion, four hundred thirty-eight million, six hundred seventy-four thousand, six hundred ten".