2667782563 has 4 divisors (see below), whose sum is σ = 2670963120. Its totient is φ = 2664602008.

The previous prime is 2667782549. The next prime is 2667782599. The reversal of 2667782563 is 3652877662.

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

It is a cyclic number.

It is not a de Polignac number, because 2667782563 - 2¹³ = 2667774371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2667782563.

It is not an unprimeable number, because it can be changed into a prime (2667782543) 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, 1589020 + ... + 1590697.

It is an arithmetic number, because the mean of its divisors is an integer number (667740780).

Almost surely, 2^2667782563 is an apocalyptic number.

2667782563 is a deficient number, since it is larger than the sum of its proper divisors (3180557).

2667782563 is an equidigital number, since it uses as much as digits as its factorization.

2667782563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3180556.

The product of its digits is 5080320, while the sum is 52.

The square root of 2667782563 is about 51650.5814391281. The cubic root of 2667782563 is about 1386.9159515525.

The spelling of 2667782563 in words is "two billion, six hundred sixty-seven million, seven hundred eighty-two thousand, five hundred sixty-three".