2782523817820 has 48 divisors (see below), whose sum is σ = 5848071774048. Its totient is φ = 1112100986880.

The previous prime is 2782523817811. The next prime is 2782523817833. The reversal of 2782523817820 is 287183252872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168823980 + ... + 168840460.

It is an arithmetic number, because the mean of its divisors is an integer number (121834828626).

Almost surely, 2^{2782523817820} is an apocalyptic number.

2782523817820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2782523817820 is an abundant number, since it is smaller than the sum of its proper divisors (3065547956228).

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

2782523817820 is a wasteful number, since it uses less digits than its factorization.

2782523817820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22870 (or 22868 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 55.

The spelling of 2782523817820 in words is "two trillion, seven hundred eighty-two billion, five hundred twenty-three million, eight hundred seventeen thousand, eight hundred twenty".