138585754046 has 4 divisors (see below), whose sum is σ = 207878631072. Its totient is φ = 69292877022.

The previous prime is 138585754031. The next prime is 138585754049. The reversal of 138585754046 is 640457585831.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×138585754046² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 138585753982 and 138585754000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138585754049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34646438510 + ... + 34646438513.

It is an arithmetic number, because the mean of its divisors is an integer number (51969657768).

Almost surely, 2^138585754046 is an apocalyptic number.

138585754046 is a deficient number, since it is larger than the sum of its proper divisors (69292877026).

138585754046 is an equidigital number, since it uses as much as digits as its factorization.

138585754046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69292877025.

The product of its (nonzero) digits is 16128000, while the sum is 56.

The spelling of 138585754046 in words is "one hundred thirty-eight billion, five hundred eighty-five million, seven hundred fifty-four thousand, forty-six".