38435582161881 has 24 divisors (see below), whose sum is σ = 56155384832040. Its totient is φ = 25329711661056.

The previous prime is 38435582161871. The next prime is 38435582161891. The reversal of 38435582161881 is 18816128553483.

It is a happy number.

38435582161881 is a `hidden beast` number, since 3 + 8 + 4 + 3 + 5 + 5 + 8 + 2 + 1 + 618 + 8 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (38435582161871) and next prime (38435582161891).

It can be written as a sum of positive squares in 4 ways, for example, as 46293825600 + 38389288336281 = 215160^2 + 6195909^2 .

It is not a de Polignac number, because 38435582161881 - 2¹⁴ = 38435582145497 is a prime.

It is a super-2 number, since 2×38435582161881² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38435582161811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2450536 + ... + 9103641.

It is an arithmetic number, because the mean of its divisors is an integer number (2339807701335).

Almost surely, 2^{38435582161881} is an apocalyptic number.

It is an amenable number.

38435582161881 is a deficient number, since it is larger than the sum of its proper divisors (17719802670159).

38435582161881 is a wasteful number, since it uses less digits than its factorization.

38435582161881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11558425 (or 11558422 counting only the distinct ones).

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

The spelling of 38435582161881 in words is "thirty-eight trillion, four hundred thirty-five billion, five hundred eighty-two million, one hundred sixty-one thousand, eight hundred eighty-one".