138285835246 has 16 divisors (see below), whose sum is σ = 224884044000. Its totient is φ = 63395879328.

The previous prime is 138285835243. The next prime is 138285835279. The reversal of 138285835246 is 642538582831.

138285835246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×138285835246³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138285835243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17844066 + ... + 17851813.

It is an arithmetic number, because the mean of its divisors is an integer number (14055252750).

Almost surely, 2^138285835246 is an apocalyptic number.

138285835246 is a deficient number, since it is larger than the sum of its proper divisors (86598208754).

138285835246 is a wasteful number, since it uses less digits than its factorization.

138285835246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35696043.

The product of its digits is 11059200, while the sum is 55.

The spelling of 138285835246 in words is "one hundred thirty-eight billion, two hundred eighty-five million, eight hundred thirty-five thousand, two hundred forty-six".