4381624681425 has 18 divisors (see below), whose sum is σ = 7847976652022. Its totient is φ = 2336866496640.

The previous prime is 4381624681417. The next prime is 4381624681487. The reversal of 4381624681425 is 5241864261834.

4381624681425 is a `hidden beast` number, since 4 + 3 + 8 + 1 + 624 + 6 + 8 + 1 + 4 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 9694962369 + 4371929719056 = 98463^2 + 2090916^2 .

It is not a de Polignac number, because 4381624681425 - 2³ = 4381624681417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9736943512 + ... + 9736943961.

Almost surely, 2^{4381624681425} is an apocalyptic number.

4381624681425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4381624681425 is a deficient number, since it is larger than the sum of its proper divisors (3466351970597).

4381624681425 is a wasteful number, since it uses less digits than its factorization.

4381624681425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19473887489 (or 19473887481 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 54.

The spelling of 4381624681425 in words is "four trillion, three hundred eighty-one billion, six hundred twenty-four million, six hundred eighty-one thousand, four hundred twenty-five".