3681381425 has 12 divisors (see below), whose sum is σ = 4566719616. Its totient is φ = 2943939600.

The previous prime is 3681381413. The next prime is 3681381439. The reversal of 3681381425 is 5241831863.

It is not a de Polignac number, because 3681381425 - 2²⁰ = 3680332849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38360 + ... + 93990.

It is an arithmetic number, because the mean of its divisors is an integer number (380559968).

Almost surely, 2^3681381425 is an apocalyptic number.

It is an amenable number.

3681381425 is a deficient number, since it is larger than the sum of its proper divisors (885338191).

3681381425 is a wasteful number, since it uses less digits than its factorization.

3681381425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58288 (or 58283 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 3681381425 is about 60674.3885424485. The cubic root of 3681381425 is about 1544.0816870491.

The spelling of 3681381425 in words is "three billion, six hundred eighty-one million, three hundred eighty-one thousand, four hundred twenty-five".