2821002362856 has 48 divisors (see below), whose sum is σ = 7642029900960. Its totient is φ = 940110715680.

The previous prime is 2821002362831. The next prime is 2821002362869. The reversal of 2821002362856 is 6582632001282.

2821002362856 is a `hidden beast` number, since 2 + 8 + 2 + 10 + 0 + 2 + 3 + 628 + 5 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4348980 + ... + 4955363.

It is an arithmetic number, because the mean of its divisors is an integer number (159208956270).

Almost surely, 2^{2821002362856} is an apocalyptic number.

It is an amenable number.

2821002362856 is an abundant number, since it is smaller than the sum of its proper divisors (4821027538104).

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

2821002362856 is a wasteful number, since it uses less digits than its factorization.

2821002362856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9308566 (or 9308559 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 2821002362856 in words is "two trillion, eight hundred twenty-one billion, two million, three hundred sixty-two thousand, eight hundred fifty-six".