38557189386 has 12 divisors (see below), whose sum is σ = 83540577042. Its totient is φ = 12852396456.

The previous prime is 38557189343. The next prime is 38557189399. The reversal of 38557189386 is 68398175583.

38557189386 is a `hidden beast` number, since 38 + 557 + 18 + 9 + 38 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27737237025 + 10819952361 = 166545^2 + 104019^2 .

It is a super-3 number, since 3×38557189386³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1071033021 + ... + 1071033056.

Almost surely, 2^38557189386 is an apocalyptic number.

38557189386 is an abundant number, since it is smaller than the sum of its proper divisors (44983387656).

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

38557189386 is a wasteful number, since it uses less digits than its factorization.

38557189386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142066085 (or 2142066082 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 63.

The spelling of 38557189386 in words is "thirty-eight billion, five hundred fifty-seven million, one hundred eighty-nine thousand, three hundred eighty-six".