6378800505 has 64 divisors (see below), whose sum is σ = 12735940608. Its totient is φ = 2648540160.

The previous prime is 6378800453. The next prime is 6378800509. The reversal of 6378800505 is 5050088736.

It is not a de Polignac number, because 6378800505 - 2⁸ = 6378800249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6378800509) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1923729 + ... + 1927041.

It is an arithmetic number, because the mean of its divisors is an integer number (198999072).

Almost surely, 2^6378800505 is an apocalyptic number.

It is an amenable number.

6378800505 is a deficient number, since it is larger than the sum of its proper divisors (6357140103).

6378800505 is a wasteful number, since it uses less digits than its factorization.

6378800505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 6378800505 is about 79867.3932528163. The cubic root of 6378800505 is about 1854.5832795632.

The spelling of 6378800505 in words is "six billion, three hundred seventy-eight million, eight hundred thousand, five hundred five".