6364603978 has 16 divisors (see below), whose sum is σ = 9869650560. Its totient is φ = 3076246656.

The previous prime is 6364603957. The next prime is 6364603991. The reversal of 6364603978 is 8793064636.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373138 + ... + 389821.

It is an arithmetic number, because the mean of its divisors is an integer number (616853160).

Almost surely, 2^6364603978 is an apocalyptic number.

6364603978 is a deficient number, since it is larger than the sum of its proper divisors (3505046582).

6364603978 is a wasteful number, since it uses less digits than its factorization.

6364603978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763101.

The product of its (nonzero) digits is 3919104, while the sum is 52.

The square root of 6364603978 is about 79778.4681352055. The cubic root of 6364603978 is about 1853.2064168376.

The spelling of 6364603978 in words is "six billion, three hundred sixty-four million, six hundred three thousand, nine hundred seventy-eight".