2139354206208 has 156 divisors (see below), whose sum is σ = 6237366949008. Its totient is φ = 706452111360.

The previous prime is 2139354206191. The next prime is 2139354206237. The reversal of 2139354206208 is 8026024539312.

2139354206208 is a `hidden beast` number, since 2 + 1 + 393 + 54 + 2 + 0 + 6 + 208 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3673263 + ... + 4215633.

It is an arithmetic number, because the mean of its divisors is an integer number (39983121468).

Almost surely, 2^{2139354206208} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2139354206208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3118683474504).

2139354206208 is an abundant number, since it is smaller than the sum of its proper divisors (4098012742800).

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

2139354206208 is a wasteful number, since it uses less digits than its factorization.

2139354206208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542508 (or 542483 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 2139354206208 in words is "two trillion, one hundred thirty-nine billion, three hundred fifty-four million, two hundred six thousand, two hundred eight".