6328127642929 has 3 divisors (see below), whose sum is σ = 6328130158507. Its totient is φ = 6328125127352.

The previous prime is 6328127642927. The next prime is 6328127642939. The reversal of 6328127642929 is 9292467218236.

The square root of 6328127642929 is 2515577.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2973193247025 + 3354934395904 = 1724295^2 + 1831648^2 .

It is not a de Polignac number, because 6328127642929 - 2¹ = 6328127642927 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6328127642927) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1257789 + ... + 3773365.

Almost surely, 2^{6328127642929} is an apocalyptic number.

6328127642929 is the 2515577-th square number.

6328127642929 is the 1257789-th centered octagonal number.

It is an amenable number.

6328127642929 is a deficient number, since it is larger than the sum of its proper divisors (2515578).

6328127642929 is an frugal number, since it uses more digits than its factorization.

6328127642929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031154 (or 2515577 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 61.

The spelling of 6328127642929 in words is "six trillion, three hundred twenty-eight billion, one hundred twenty-seven million, six hundred forty-two thousand, nine hundred twenty-nine".