2872284661828 has 18 divisors (see below), whose sum is σ = 5339567249786. Its totient is φ = 1351663369728.

The previous prime is 2872284661789. The next prime is 2872284661853. The reversal of 2872284661828 is 8281664822782.

It can be written as a sum of positive squares in 3 ways, for example, as 713024870464 + 2159259791364 = 844408^2 + 1469442^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2872284661828.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1242336501 + ... + 1242338812.

Almost surely, 2^{2872284661828} is an apocalyptic number.

It is an amenable number.

2872284661828 is a deficient number, since it is larger than the sum of its proper divisors (2467282587958).

2872284661828 is a wasteful number, since it uses less digits than its factorization.

2872284661828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484675351 (or 2484675332 counting only the distinct ones).

The product of its digits is 66060288, while the sum is 64.

The spelling of 2872284661828 in words is "two trillion, eight hundred seventy-two billion, two hundred eighty-four million, six hundred sixty-one thousand, eight hundred twenty-eight".