2784095057 has 4 divisors (see below), whose sum is σ = 2785814196. Its totient is φ = 2782375920.

The previous prime is 2784095051. The next prime is 2784095087. The reversal of 2784095057 is 7505904872.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2484424336 + 299670721 = 49844^2 + 17311^2 .

It is a cyclic number.

It is not a de Polignac number, because 2784095057 - 2²⁰ = 2783046481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2784095051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857138 + ... + 860379.

It is an arithmetic number, because the mean of its divisors is an integer number (696453549).

Almost surely, 2^2784095057 is an apocalyptic number.

It is an amenable number.

2784095057 is a deficient number, since it is larger than the sum of its proper divisors (1719139).

2784095057 is a wasteful number, since it uses less digits than its factorization.

2784095057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719138.

The product of its (nonzero) digits is 705600, while the sum is 47.

The square root of 2784095057 is about 52764.5246069743. The cubic root of 2784095057 is about 1406.7859419523.

The spelling of 2784095057 in words is "two billion, seven hundred eighty-four million, ninety-five thousand, fifty-seven".