6419432825 has 24 divisors (see below), whose sum is σ = 8945135808. Its totient is φ = 4534390080.

The previous prime is 6419432821. The next prime is 6419432827. The reversal of 6419432825 is 5282349146.

It is not a de Polignac number, because 6419432825 - 2² = 6419432821 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6419432821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 421919 + ... + 436868.

It is an arithmetic number, because the mean of its divisors is an integer number (372713992).

Almost surely, 2^6419432825 is an apocalyptic number.

6419432825 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6419432825 is a deficient number, since it is larger than the sum of its proper divisors (2525702983).

6419432825 is a wasteful number, since it uses less digits than its factorization.

6419432825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858833 (or 858828 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 6419432825 is about 80121.3630999873. The cubic root of 6419432825 is about 1858.5127843670.

The spelling of 6419432825 in words is "six billion, four hundred nineteen million, four hundred thirty-two thousand, eight hundred twenty-five".