425888509003821 has 16 divisors (see below), whose sum is σ = 630976374995520. Its totient is φ = 283911976590480.

The previous prime is 425888509003819. The next prime is 425888509003871. The reversal of 425888509003821 is 128300905888524.

425888509003821 is a `hidden beast` number, since 4 + 25 + 8 + 88 + 509 + 0 + 0 + 3 + 8 + 21 = 666.

It is not a de Polignac number, because 425888509003821 - 2¹ = 425888509003819 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425888509003871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379876530 + ... + 380996003.

It is an arithmetic number, because the mean of its divisors is an integer number (39436023437220).

Almost surely, 2^{425888509003821} is an apocalyptic number.

It is an amenable number.

425888509003821 is a deficient number, since it is larger than the sum of its proper divisors (205087865991699).

425888509003821 is a wasteful number, since it uses less digits than its factorization.

425888509003821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760893273 (or 760893267 counting only the distinct ones).

The product of its (nonzero) digits is 44236800, while the sum is 63.

The spelling of 425888509003821 in words is "four hundred twenty-five trillion, eight hundred eighty-eight billion, five hundred nine million, three thousand, eight hundred twenty-one".