6427768305 has 96 divisors (see below), whose sum is σ = 12633753600. Its totient is φ = 2774798208.

The previous prime is 6427768283. The next prime is 6427768337. The reversal of 6427768305 is 5038677246.

It is not a de Polignac number, because 6427768305 - 2⁸ = 6427768049 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6185976 + ... + 6187014.

It is an arithmetic number, because the mean of its divisors is an integer number (131601600).

Almost surely, 2^6427768305 is an apocalyptic number.

It is an amenable number.

6427768305 is a deficient number, since it is larger than the sum of its proper divisors (6205985295).

6427768305 is a wasteful number, since it uses less digits than its factorization.

6427768305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 48.

The square root of 6427768305 is about 80173.3640618878. The cubic root of 6427768305 is about 1859.3168479160.

The spelling of 6427768305 in words is "six billion, four hundred twenty-seven million, seven hundred sixty-eight thousand, three hundred five".