2107891773140 has 12 divisors (see below), whose sum is σ = 4426572723636. Its totient is φ = 843156709248.

The previous prime is 2107891773139. The next prime is 2107891773191. The reversal of 2107891773140 is 413771987012.

It can be written as a sum of positive squares in 2 ways, for example, as 1618345268164 + 489546504976 = 1272142^2 + 699676^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52697294309 + ... + 52697294348.

It is an arithmetic number, because the mean of its divisors is an integer number (368881060303).

Almost surely, 2^{2107891773140} is an apocalyptic number.

2107891773140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2107891773140 is an abundant number, since it is smaller than the sum of its proper divisors (2318680950496).

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

2107891773140 is a wasteful number, since it uses less digits than its factorization.

2107891773140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105394588666 (or 105394588664 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 50.

The spelling of 2107891773140 in words is "two trillion, one hundred seven billion, eight hundred ninety-one million, seven hundred seventy-three thousand, one hundred forty".