6415425812 has 12 divisors (see below), whose sum is σ = 11229278676. Its totient is φ = 3207060480.

The previous prime is 6415425773. The next prime is 6415425817. The reversal of 6415425812 is 2185245146.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 760987396 + 5654438416 = 27586^2 + 75196^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6415425817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140639 + ... + 180582.

It is an arithmetic number, because the mean of its divisors is an integer number (935773223).

Almost surely, 2^6415425812 is an apocalyptic number.

It is an amenable number.

6415425812 is a deficient number, since it is larger than the sum of its proper divisors (4813852864).

6415425812 is a wasteful number, since it uses less digits than its factorization.

6415425812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326218 (or 326216 counting only the distinct ones).

The product of its digits is 76800, while the sum is 38.

The square root of 6415425812 is about 80096.3533002596. The cubic root of 6415425812 is about 1858.1260090282.

The spelling of 6415425812 in words is "six billion, four hundred fifteen million, four hundred twenty-five thousand, eight hundred twelve".