2781469892 has 48 divisors (see below), whose sum is σ = 5329981440. Its totient is φ = 1264952832.

The previous prime is 2781469861. The next prime is 2781469903. The reversal of 2781469892 is 2989641872.

2781469892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235709 + ... + 247227.

It is an arithmetic number, because the mean of its divisors is an integer number (111041280).

Almost surely, 2^2781469892 is an apocalyptic number.

It is an amenable number.

2781469892 is a deficient number, since it is larger than the sum of its proper divisors (2548511548).

2781469892 is a wasteful number, since it uses less digits than its factorization.

2781469892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11660 (or 11658 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 56.

The square root of 2781469892 is about 52739.6425092169. The cubic root of 2781469892 is about 1406.3436430494.

The spelling of 2781469892 in words is "two billion, seven hundred eighty-one million, four hundred sixty-nine thousand, eight hundred ninety-two".