138054193756636 has 24 divisors (see below), whose sum is σ = 253349335275120. Its totient is φ = 65733881576832.

The previous prime is 138054193756559. The next prime is 138054193756649. The reversal of 138054193756636 is 636657391450831.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8151514546 + ... + 8151531481.

It is an arithmetic number, because the mean of its divisors is an integer number (10556222303130).

Almost surely, 2^{138054193756636} is an apocalyptic number.

It is an amenable number.

138054193756636 is a deficient number, since it is larger than the sum of its proper divisors (115295141518484).

138054193756636 is a wasteful number, since it uses less digits than its factorization.

138054193756636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16303046133 (or 16303046131 counting only the distinct ones).

The product of its (nonzero) digits is 293932800, while the sum is 67.

The spelling of 138054193756636 in words is "one hundred thirty-eight trillion, fifty-four billion, one hundred ninety-three million, seven hundred fifty-six thousand, six hundred thirty-six".