2768542785 has 24 divisors (see below), whose sum is σ = 4804473960. Its totient is φ = 1474812672.

The previous prime is 2768542783. The next prime is 2768542787. The reversal of 2768542785 is 5872458672.

2768542785 is a `hidden beast` number, since 27 + 6 + 8 + 542 + 78 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (2768542783) and next prime (2768542787).

It can be written as a sum of positive squares in 4 ways, for example, as 699020721 + 2069522064 = 26439^2 + 45492^2 .

It is not a de Polignac number, because 2768542785 - 2¹ = 2768542783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2768542783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2671 + ... + 74459.

It is an arithmetic number, because the mean of its divisors is an integer number (200186415).

Almost surely, 2^2768542785 is an apocalyptic number.

It is an amenable number.

2768542785 is a deficient number, since it is larger than the sum of its proper divisors (2035931175).

2768542785 is a wasteful number, since it uses less digits than its factorization.

2768542785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72657 (or 72654 counting only the distinct ones).

The product of its digits is 7526400, while the sum is 54.

The square root of 2768542785 is about 52616.9438964294. The cubic root of 2768542785 is about 1404.1615603525.

The spelling of 2768542785 in words is "two billion, seven hundred sixty-eight million, five hundred forty-two thousand, seven hundred eighty-five".