2042821910740 has 24 divisors (see below), whose sum is σ = 4619920321800. Its totient is φ = 754272705408.

The previous prime is 2042821910729. The next prime is 2042821910821. The reversal of 2042821910740 is 470191282402.

It can be written as a sum of positive squares in 4 ways, for example, as 10708938256 + 2032112972484 = 103484^2 + 1425522^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2042821910693 and 2042821910702.

It is a congruent number.

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, 3928503415 + ... + 3928503934.

It is an arithmetic number, because the mean of its divisors is an integer number (192496680075).

Almost surely, 2^{2042821910740} is an apocalyptic number.

2042821910740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2042821910740 is an abundant number, since it is smaller than the sum of its proper divisors (2577098411060).

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

2042821910740 is a wasteful number, since it uses less digits than its factorization.

2042821910740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7857007371 (or 7857007369 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 2042821910740 in words is "two trillion, forty-two billion, eight hundred twenty-one million, nine hundred ten thousand, seven hundred forty".