6368958432638 has 8 divisors (see below), whose sum is σ = 9553958582760. Its totient is φ = 3184305571720.

The previous prime is 6368958432637. The next prime is 6368958432743. The reversal of 6368958432638 is 8362348598636.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6368958432631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86776448 + ... + 86849811.

It is an arithmetic number, because the mean of its divisors is an integer number (1194244822845).

Almost surely, 2^{6368958432638} is an apocalyptic number.

6368958432638 is a deficient number, since it is larger than the sum of its proper divisors (3185000150122).

6368958432638 is a wasteful number, since it uses less digits than its factorization.

6368958432638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173644602.

The product of its digits is 1074954240, while the sum is 71.

The spelling of 6368958432638 in words is "six trillion, three hundred sixty-eight billion, nine hundred fifty-eight million, four hundred thirty-two thousand, six hundred thirty-eight".