2781057118 has 16 divisors (see below), whose sum is σ = 4768215264. Its totient is φ = 1191709440.

The previous prime is 2781057107. The next prime is 2781057133. The reversal of 2781057118 is 8117501872.

It is a congruent number.

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, 154678 + ... + 171718.

It is an arithmetic number, because the mean of its divisors is an integer number (298013454).

Almost surely, 2^2781057118 is an apocalyptic number.

2781057118 is a deficient number, since it is larger than the sum of its proper divisors (1987158146).

2781057118 is a wasteful number, since it uses less digits than its factorization.

2781057118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28707.

The product of its (nonzero) digits is 31360, while the sum is 40.

The square root of 2781057118 is about 52735.7290458755. The cubic root of 2781057118 is about 1406.2740718237.

The spelling of 2781057118 in words is "two billion, seven hundred eighty-one million, fifty-seven thousand, one hundred eighteen".