6428338995 has 32 divisors (see below), whose sum is σ = 11285531712. Its totient is φ = 3105004032.

The previous prime is 6428338993. The next prime is 6428338997. The reversal of 6428338995 is 5998338246.

It is an interprime number because it is at equal distance from previous prime (6428338993) and next prime (6428338997).

It is not a de Polignac number, because 6428338995 - 2¹ = 6428338993 is a prime.

It is a super-2 number, since 2×6428338995² = 82647084469275220050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6428338991) 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 31 ways as a sum of consecutive naturals, for example, 300664 + ... + 321333.

It is an arithmetic number, because the mean of its divisors is an integer number (352672866).

Almost surely, 2^6428338995 is an apocalyptic number.

6428338995 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6428338995 is a deficient number, since it is larger than the sum of its proper divisors (4857192717).

6428338995 is a wasteful number, since it uses less digits than its factorization.

6428338995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622071.

The product of its digits is 11197440, while the sum is 57.

The square root of 6428338995 is about 80176.9230826427. The cubic root of 6428338995 is about 1859.3718728267.

The spelling of 6428338995 in words is "six billion, four hundred twenty-eight million, three hundred thirty-eight thousand, nine hundred ninety-five".