6358640536 has 32 divisors (see below), whose sum is σ = 12445286400. Its totient is φ = 3039996960.

The previous prime is 6358640531. The next prime is 6358640539. The reversal of 6358640536 is 6350468536.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6358640531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 772201 + ... + 780391.

It is an arithmetic number, because the mean of its divisors is an integer number (388915200).

Almost surely, 2^6358640536 is an apocalyptic number.

It is an amenable number.

6358640536 is a deficient number, since it is larger than the sum of its proper divisors (6086645864).

6358640536 is a wasteful number, since it uses less digits than its factorization.

6358640536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12439 (or 12435 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 46.

The square root of 6358640536 is about 79741.0843668432. The cubic root of 6358640536 is about 1852.6274364614.

The spelling of 6358640536 in words is "six billion, three hundred fifty-eight million, six hundred forty thousand, five hundred thirty-six".