2768478505 has 32 divisors (see below), whose sum is σ = 3819191040. Its totient is φ = 1909474560.

The previous prime is 2768478481. The next prime is 2768478511. The reversal of 2768478505 is 5058748672.

It is not a de Polignac number, because 2768478505 - 2¹¹ = 2768476457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71899 + ... + 103471.

It is an arithmetic number, because the mean of its divisors is an integer number (119349720).

Almost surely, 2^2768478505 is an apocalyptic number.

It is an amenable number.

2768478505 is a deficient number, since it is larger than the sum of its proper divisors (1050712535).

2768478505 is a wasteful number, since it uses less digits than its factorization.

2768478505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31681.

The product of its (nonzero) digits is 3763200, while the sum is 52.

The square root of 2768478505 is about 52616.3330630328. Note that the first 3 decimals coincide. The cubic root of 2768478505 is about 1404.1506929984.

The spelling of 2768478505 in words is "two billion, seven hundred sixty-eight million, four hundred seventy-eight thousand, five hundred five".