2105792751380 has 12 divisors (see below), whose sum is σ = 4422164777940. Its totient is φ = 842317100544.

The previous prime is 2105792751373. The next prime is 2105792751389. The reversal of 2105792751380 is 831572975012.

It can be written as a sum of positive squares in 2 ways, for example, as 433379955856 + 1672412795524 = 658316^2 + 1293218^2 .

It is a super-2 number, since 2×2105792751380² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105792751389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52644818765 + ... + 52644818804.

It is an arithmetic number, because the mean of its divisors is an integer number (368513731495).

Almost surely, 2^{2105792751380} is an apocalyptic number.

2105792751380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2105792751380 is an abundant number, since it is smaller than the sum of its proper divisors (2316372026560).

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

2105792751380 is a wasteful number, since it uses less digits than its factorization.

2105792751380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105289637578 (or 105289637576 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 50.

The spelling of 2105792751380 in words is "two trillion, one hundred five billion, seven hundred ninety-two million, seven hundred fifty-one thousand, three hundred eighty".