38382919881 has 16 divisors (see below), whose sum is σ = 52728367104. Its totient is φ = 24817463424.

The previous prime is 38382919877. The next prime is 38382919921. The reversal of 38382919881 is 18891928383.

It is not a de Polignac number, because 38382919881 - 2² = 38382919877 is a prime.

It is a super-2 number, since 2×38382919881² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38382919801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517641 + ... + 587126.

It is an arithmetic number, because the mean of its divisors is an integer number (3295522944).

Almost surely, 2^38382919881 is an apocalyptic number.

It is an amenable number.

38382919881 is a deficient number, since it is larger than the sum of its proper divisors (14345447223).

38382919881 is a wasteful number, since it uses less digits than its factorization.

38382919881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105120.

The product of its digits is 5971968, while the sum is 60.

The spelling of 38382919881 in words is "thirty-eight billion, three hundred eighty-two million, nine hundred nineteen thousand, eight hundred eighty-one".