2748783685 has 8 divisors (see below), whose sum is σ = 3299982840. Its totient is φ = 2198065344.

The previous prime is 2748783677. The next prime is 2748783689. The reversal of 2748783685 is 5863878472.

2748783685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 800267521 + 1948516164 = 28289^2 + 44142^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2748783685 - 2³ = 2748783677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2748783689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107502 + ... + 130591.

It is an arithmetic number, because the mean of its divisors is an integer number (412497855).

Almost surely, 2^2748783685 is an apocalyptic number.

It is an amenable number.

2748783685 is a deficient number, since it is larger than the sum of its proper divisors (551199155).

2748783685 is a wasteful number, since it uses less digits than its factorization.

2748783685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240407.

The product of its digits is 18063360, while the sum is 58.

The square root of 2748783685 is about 52428.8440173918. The cubic root of 2748783685 is about 1400.8130795662.

The spelling of 2748783685 in words is "two billion, seven hundred forty-eight million, seven hundred eighty-three thousand, six hundred eighty-five".