6304988868391 has 4 divisors (see below), whose sum is σ = 6636830387800. Its totient is φ = 5973147348984.

The previous prime is 6304988868361. The next prime is 6304988868439. The reversal of 6304988868391 is 1938688894036.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6304988868391 - 2¹¹ = 6304988866343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6304988868361) 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, 165920759676 + ... + 165920759713.

It is an arithmetic number, because the mean of its divisors is an integer number (1659207596950).

Almost surely, 2^{6304988868391} is an apocalyptic number.

6304988868391 is a deficient number, since it is larger than the sum of its proper divisors (331841519409).

6304988868391 is a wasteful number, since it uses less digits than its factorization.

6304988868391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331841519408.

The product of its (nonzero) digits is 429981696, while the sum is 73.

The spelling of 6304988868391 in words is "six trillion, three hundred four billion, nine hundred eighty-eight million, eight hundred sixty-eight thousand, three hundred ninety-one".