6428930402738 has 24 divisors (see below), whose sum is σ = 9880074619308. Its totient is φ = 3137420967072.

The previous prime is 6428930402737. The next prime is 6428930402747. The reversal of 6428930402738 is 8372040398246.

It can be written as a sum of positive squares in 2 ways, for example, as 6013515349009 + 415415053729 = 2452247^2 + 644527^2 .

It is a super-2 number, since 2×6428930402738² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6428930402737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4444256 + ... + 5710452.

Almost surely, 2^{6428930402738} is an apocalyptic number.

6428930402738 is a deficient number, since it is larger than the sum of its proper divisors (3451144216570).

6428930402738 is a wasteful number, since it uses less digits than its factorization.

6428930402738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267658 (or 1267615 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 56.

The spelling of 6428930402738 in words is "six trillion, four hundred twenty-eight billion, nine hundred thirty million, four hundred two thousand, seven hundred thirty-eight".