38934265986 has 384 divisors, whose sum is σ = 114728140800. Its totient is φ = 9239287680.

The previous prime is 38934265973. The next prime is 38934266027. The reversal of 38934265986 is 68956243983.

38934265986 is a `hidden beast` number, since 3 + 8 + 9 + 34 + 2 + 6 + 598 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 102728745 + ... + 102729123.

It is an arithmetic number, because the mean of its divisors is an integer number (298771200).

Almost surely, 2^38934265986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38934265986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57364070400).

38934265986 is an abundant number, since it is smaller than the sum of its proper divisors (75793874814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38934265986 is a wasteful number, since it uses less digits than its factorization.

38934265986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 551 counting only the distinct ones).

The product of its digits is 67184640, while the sum is 63.

The spelling of 38934265986 in words is "thirty-eight billion, nine hundred thirty-four million, two hundred sixty-five thousand, nine hundred eighty-six".