2820518002872 has 40 divisors (see below), whose sum is σ = 7900062000600. Its totient is φ = 940172667408.

The previous prime is 2820518002871. The next prime is 2820518002889. The reversal of 2820518002872 is 2782008150282.

2820518002872 is a `hidden beast` number, since 28 + 20 + 518 + 0 + 0 + 28 + 72 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2820518002871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2176324972 + ... + 2176326267.

It is an arithmetic number, because the mean of its divisors is an integer number (197501550015).

Almost surely, 2^{2820518002872} is an apocalyptic number.

It is an amenable number.

2820518002872 is an abundant number, since it is smaller than the sum of its proper divisors (5079543997728).

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

2820518002872 is a wasteful number, since it uses less digits than its factorization.

2820518002872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4352651257 (or 4352651244 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 45.

The spelling of 2820518002872 in words is "two trillion, eight hundred twenty billion, five hundred eighteen million, two thousand, eight hundred seventy-two".