6400764115 has 8 divisors (see below), whose sum is σ = 7714459440. Its totient is φ = 5098249632.

The previous prime is 6400764113. The next prime is 6400764119. The reversal of 6400764115 is 5114670046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6400764115 - 2¹ = 6400764113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6400764113) 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, 2793949 + ... + 2796238.

It is an arithmetic number, because the mean of its divisors is an integer number (964307430).

Almost surely, 2^6400764115 is an apocalyptic number.

6400764115 is a deficient number, since it is larger than the sum of its proper divisors (1313695325).

6400764115 is a wasteful number, since it uses less digits than its factorization.

6400764115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5590421.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 6400764115 is about 80004.7755762117. The cubic root of 6400764115 is about 1856.7094202474.

The spelling of 6400764115 in words is "six billion, four hundred million, seven hundred sixty-four thousand, one hundred fifteen".