639902201300 has 18 divisors (see below), whose sum is σ = 1388587777038. Its totient is φ = 255960880480.

The previous prime is 639902201209. The next prime is 639902201333. The reversal of 639902201300 is 3102209936.

It can be written as a sum of positive squares in 3 ways, for example, as 25424940304 + 614477260996 = 159452^2 + 783886^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3199510907 + ... + 3199511106.

It is an arithmetic number, because the mean of its divisors is an integer number (77143765391).

Almost surely, 2^639902201300 is an apocalyptic number.

It is an amenable number.

639902201300 is an abundant number, since it is smaller than the sum of its proper divisors (748685575738).

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

639902201300 is a wasteful number, since it uses less digits than its factorization.

639902201300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6399022027 (or 6399022020 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The spelling of 639902201300 in words is "six hundred thirty-nine billion, nine hundred two million, two hundred one thousand, three hundred".