138134689047 has 24 divisors (see below), whose sum is σ = 204219336464. Its totient is φ = 89925583104.

The previous prime is 138134688983. The next prime is 138134689057. The reversal of 138134689047 is 740986431831.

138134689047 is a `hidden beast` number, since 13 + 81 + 3 + 468 + 90 + 4 + 7 = 666.

It is not a de Polignac number, because 138134689047 - 2⁶ = 138134688983 is a prime.

It is a super-2 number, since 2×138134689047² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138134688984 and 138134689002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138134689057) 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, 1573773 + ... + 1659225.

Almost surely, 2^138134689047 is an apocalyptic number.

138134689047 is a deficient number, since it is larger than the sum of its proper divisors (66084647417).

138134689047 is a wasteful number, since it uses less digits than its factorization.

138134689047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89679 (or 89676 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 138134689047 in words is "one hundred thirty-eight billion, one hundred thirty-four million, six hundred eighty-nine thousand, forty-seven".