2820461531856 has 40 divisors (see below), whose sum is σ = 7286257102080. Its totient is φ = 940145481216.

The previous prime is 2820461531809. The next prime is 2820461531933. The reversal of 2820461531856 is 6581351640282.

It is a junction number, because it is equal to n+sod(n) for n = 2820461531799 and 2820461531808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7677096 + ... + 8036088.

It is an arithmetic number, because the mean of its divisors is an integer number (182156427552).

Almost surely, 2^{2820461531856} is an apocalyptic number.

It is an amenable number.

2820461531856 is an abundant number, since it is smaller than the sum of its proper divisors (4465795570224).

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

2820461531856 is a wasteful number, since it uses less digits than its factorization.

2820461531856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522683 (or 522677 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 2820461531856 in words is "two trillion, eight hundred twenty billion, four hundred sixty-one million, five hundred thirty-one thousand, eight hundred fifty-six".