6428368749 has 16 divisors (see below), whose sum is σ = 9367168320. Its totient is φ = 3888975360.

The previous prime is 6428368711. The next prime is 6428368757. The reversal of 6428368749 is 9478638246.

It is not a de Polignac number, because 6428368749 - 2⁷ = 6428368621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6428368759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156484 + ... + 193245.

It is an arithmetic number, because the mean of its divisors is an integer number (585448020).

Almost surely, 2^6428368749 is an apocalyptic number.

It is an amenable number.

6428368749 is a deficient number, since it is larger than the sum of its proper divisors (2938799571).

6428368749 is a wasteful number, since it uses less digits than its factorization.

6428368749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350300.

The product of its digits is 13934592, while the sum is 57.

The square root of 6428368749 is about 80177.1086345722. The cubic root of 6428368749 is about 1859.3747415649.

The spelling of 6428368749 in words is "six billion, four hundred twenty-eight million, three hundred sixty-eight thousand, seven hundred forty-nine".