38481961409523 has 6 divisors (see below), whose sum is σ = 55585055369324. Its totient is φ = 25654640939676.

The previous prime is 38481961409491. The next prime is 38481961409569. The reversal of 38481961409523 is 32590416918483.

38481961409523 is a `hidden beast` number, since 3 + 8 + 4 + 8 + 1 + 9 + 61 + 40 + 9 + 523 = 666.

It is not a de Polignac number, because 38481961409523 - 2⁵ = 38481961409491 is a prime.

It is a super-2 number, since 2×38481961409523² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38481961459523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2137886744965 + ... + 2137886744982.

Almost surely, 2^{38481961409523} is an apocalyptic number.

38481961409523 is a deficient number, since it is larger than the sum of its proper divisors (17103093959801).

38481961409523 is a wasteful number, since it uses less digits than its factorization.

38481961409523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4275773489953 (or 4275773489950 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 63.

The spelling of 38481961409523 in words is "thirty-eight trillion, four hundred eighty-one billion, nine hundred sixty-one million, four hundred nine thousand, five hundred twenty-three".