2818121536 has 14 divisors (see below), whose sum is σ = 5592210050. Its totient is φ = 1409060736.

The previous prime is 2818121443. The next prime is 2818121561. The reversal of 2818121536 is 6351218182.

It can be written as a sum of positive squares in only one way, i.e., 2803067136 + 15054400 = 52944^2 + 3880^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2818121495 and 2818121504.

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 as a sum of consecutive naturals, namely, 22016511 + ... + 22016638.

It is an arithmetic number, because the mean of its divisors is an integer number (399443575).

Almost surely, 2^2818121536 is an apocalyptic number.

It is an amenable number.

2818121536 is a deficient number, since it is larger than the sum of its proper divisors (2774088514).

2818121536 is an equidigital number, since it uses as much as digits as its factorization.

2818121536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44033161 (or 44033151 counting only the distinct ones).

The product of its digits is 23040, while the sum is 37.

The square root of 2818121536 is about 53085.9824812539. The cubic root of 2818121536 is about 1412.4938739495.

The spelling of 2818121536 in words is "two billion, eight hundred eighteen million, one hundred twenty-one thousand, five hundred thirty-six".