3821646523325 has 6 divisors (see below), whose sum is σ = 4738841688954. Its totient is φ = 3057317218640.

The previous prime is 3821646523291. The next prime is 3821646523327. The reversal of 3821646523325 is 5233256461283.

It can be written as a sum of positive squares in 3 ways, for example, as 660458534596 + 3161187988729 = 812686^2 + 1777973^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3821646523325 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3821646523327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76432930442 + ... + 76432930491.

It is an arithmetic number, because the mean of its divisors is an integer number (789806948159).

Almost surely, 2^{3821646523325} is an apocalyptic number.

It is an amenable number.

3821646523325 is a deficient number, since it is larger than the sum of its proper divisors (917195165629).

3821646523325 is a wasteful number, since it uses less digits than its factorization.

3821646523325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152865860943 (or 152865860938 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 50.

The spelling of 3821646523325 in words is "three trillion, eight hundred twenty-one billion, six hundred forty-six million, five hundred twenty-three thousand, three hundred twenty-five".