2781053900 has 18 divisors (see below), whose sum is σ = 6034887180. Its totient is φ = 1112421520.

The previous prime is 2781053897. The next prime is 2781053911. The reversal of 2781053900 is 93501872.

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, 13905170 + ... + 13905369.

It is an arithmetic number, because the mean of its divisors is an integer number (335271510).

Almost surely, 2^2781053900 is an apocalyptic number.

2781053900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2781053900 is an abundant number, since it is smaller than the sum of its proper divisors (3253833280).

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

2781053900 is a wasteful number, since it uses less digits than its factorization.

2781053900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27810553 (or 27810546 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 2781053900 is about 52735.6985352427. The cubic root of 2781053900 is about 1406.2735294170.

The spelling of 2781053900 in words is "two billion, seven hundred eighty-one million, fifty-three thousand, nine hundred".