6403768790 has 16 divisors (see below), whose sum is σ = 12027948768. Its totient is φ = 2450137536.

The previous prime is 6403768771. The next prime is 6403768799. The reversal of 6403768790 is 978673046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6403768799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13921007 + ... + 13921466.

It is an arithmetic number, because the mean of its divisors is an integer number (751746798).

Almost surely, 2^6403768790 is an apocalyptic number.

6403768790 is a deficient number, since it is larger than the sum of its proper divisors (5624179978).

6403768790 is a wasteful number, since it uses less digits than its factorization.

6403768790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27842503.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The square root of 6403768790 is about 80023.5514708014. The cubic root of 6403768790 is about 1856.9999030482. Note that the first 4 decimals are identical.

The spelling of 6403768790 in words is "six billion, four hundred three million, seven hundred sixty-eight thousand, seven hundred ninety".