2781849092 has 24 divisors (see below), whose sum is σ = 5340159552. Its totient is φ = 1257487200.

The previous prime is 2781849089. The next prime is 2781849121. The reversal of 2781849092 is 2909481872.

It is a super-2 number, since 2×2781849092² = 15477368741322448928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2781849092.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166688 + ... + 182615.

It is an arithmetic number, because the mean of its divisors is an integer number (222506648).

Almost surely, 2^2781849092 is an apocalyptic number.

2781849092 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2781849092 is a deficient number, since it is larger than the sum of its proper divisors (2558310460).

2781849092 is a wasteful number, since it uses less digits than its factorization.

2781849092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349499 (or 349497 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 2781849092 is about 52743.2374053774. The cubic root of 2781849092 is about 1406.4075494607.

The spelling of 2781849092 in words is "two billion, seven hundred eighty-one million, eight hundred forty-nine thousand, ninety-two".