6319993825 has 6 divisors (see below), whose sum is σ = 7836792374. Its totient is φ = 5055995040.

The previous prime is 6319993811. The next prime is 6319993859. The reversal of 6319993825 is 5283999136.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1235733409 + 5084260416 = 35153^2 + 71304^2 .

It is not a de Polignac number, because 6319993825 - 2¹⁹ = 6319469537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 126399852 + ... + 126399901.

Almost surely, 2^6319993825 is an apocalyptic number.

It is an amenable number.

6319993825 is a deficient number, since it is larger than the sum of its proper divisors (1516798549).

6319993825 is a wasteful number, since it uses less digits than its factorization.

6319993825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252799763 (or 252799758 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 55.

The square root of 6319993825 is about 79498.3888201516. The cubic root of 6319993825 is about 1848.8664909256.

The spelling of 6319993825 in words is "six billion, three hundred nineteen million, nine hundred ninety-three thousand, eight hundred twenty-five".