8349636642 has 32 divisors (see below), whose sum is σ = 17021586240. Its totient is φ = 2729538240.

The previous prime is 8349636623. The next prime is 8349636677. The reversal of 8349636642 is 2466369438.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1068084 + ... + 1075872.

It is an arithmetic number, because the mean of its divisors is an integer number (531924570).

Almost surely, 2^8349636642 is an apocalyptic number.

8349636642 is an abundant number, since it is smaller than the sum of its proper divisors (8671949598).

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

8349636642 is a wasteful number, since it uses less digits than its factorization.

8349636642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11218.

The product of its digits is 4478976, while the sum is 51.

The square root of 8349636642 is about 91376.3461843381. The cubic root of 8349636642 is about 2028.7219374744.

The spelling of 8349636642 in words is "eight billion, three hundred forty-nine million, six hundred thirty-six thousand, six hundred forty-two".