2086210708640 has 48 divisors (see below), whose sum is σ = 4984051179240. Its totient is φ = 825108049920.

The previous prime is 2086210708639. The next prime is 2086210708691. The reversal of 2086210708640 is 468070126802.

It can be written as a sum of positive squares in 4 ways, for example, as 1651502571664 + 434708136976 = 1285108^2 + 659324^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2086210708591 and 2086210708600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73237541 + ... + 73266020.

Almost surely, 2^{2086210708640} is an apocalyptic number.

2086210708640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2086210708640 is an abundant number, since it is smaller than the sum of its proper divisors (2897840470600).

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

2086210708640 is a wasteful number, since it uses less digits than its factorization.

2086210708640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146503665 (or 146503657 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 2086210708640 in words is "two trillion, eighty-six billion, two hundred ten million, seven hundred eight thousand, six hundred forty".