2728099816 has 16 divisors (see below), whose sum is σ = 5508663300. Its totient is φ = 1259122944.

The previous prime is 2728099771. The next prime is 2728099841. The reversal of 2728099816 is 6189908272.

It can be written as a sum of positive squares in 2 ways, for example, as 2318037316 + 410062500 = 48146^2 + 20250^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13115761 + ... + 13115968.

Almost surely, 2^2728099816 is an apocalyptic number.

2728099816 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2728099816 is an abundant number, since it is smaller than the sum of its proper divisors (2780563484).

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

2728099816 is a wasteful number, since it uses less digits than its factorization.

2728099816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26231748 (or 26231744 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 2728099816 is about 52231.2149581072. The cubic root of 2728099816 is about 1397.2906471767.

The spelling of 2728099816 in words is "two billion, seven hundred twenty-eight million, ninety-nine thousand, eight hundred sixteen".