6404200423025 has 6 divisors (see below), whose sum is σ = 7941208524582. Its totient is φ = 5123360338400.

The previous prime is 6404200423007. The next prime is 6404200423039. The reversal of 6404200423025 is 5203240024046.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 23443590769 + 6380756832256 = 153113^2 + 2526016^2 .

It is not a de Polignac number, because 6404200423025 - 2¹⁰ = 6404200422001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6404200422982 and 6404200423000.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128084008436 + ... + 128084008485.

It is an arithmetic number, because the mean of its divisors is an integer number (1323534754097).

Almost surely, 2^{6404200423025} is an apocalyptic number.

It is an amenable number.

6404200423025 is a deficient number, since it is larger than the sum of its proper divisors (1537008101557).

6404200423025 is a wasteful number, since it uses less digits than its factorization.

6404200423025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256168016931 (or 256168016926 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

The spelling of 6404200423025 in words is "six trillion, four hundred four billion, two hundred million, four hundred twenty-three thousand, twenty-five".