6425185812 has 24 divisors (see below), whose sum is σ = 15197473536. Its totient is φ = 2112389568.

The previous prime is 6425185777. The next prime is 6425185841. The reversal of 6425185812 is 2185815246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3666468 + ... + 3668219.

It is an arithmetic number, because the mean of its divisors is an integer number (633228064).

Almost surely, 2^6425185812 is an apocalyptic number.

It is an amenable number.

6425185812 is an abundant number, since it is smaller than the sum of its proper divisors (8772287724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6425185812 is a wasteful number, since it uses less digits than its factorization.

6425185812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7334767 (or 7334765 counting only the distinct ones).

The product of its digits is 153600, while the sum is 42.

The square root of 6425185812 is about 80157.2567644377. The cubic root of 6425185812 is about 1859.0678078284.

The spelling of 6425185812 in words is "six billion, four hundred twenty-five million, one hundred eighty-five thousand, eight hundred twelve".