138151368736 has 12 divisors (see below), whose sum is σ = 271985507262. Its totient is φ = 69075684352.

The previous prime is 138151368713. The next prime is 138151368743. The reversal of 138151368736 is 637863151831.

It can be written as a sum of positive squares in only one way, i.e., 137596483600 + 554885136 = 370940^2 + 23556^2 .

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 as a sum of consecutive naturals, namely, 2158615105 + ... + 2158615168.

Almost surely, 2^138151368736 is an apocalyptic number.

138151368736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

138151368736 is a deficient number, since it is larger than the sum of its proper divisors (133834138526).

138151368736 is an equidigital number, since it uses as much as digits as its factorization.

138151368736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4317230283 (or 4317230275 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The spelling of 138151368736 in words is "one hundred thirty-eight billion, one hundred fifty-one million, three hundred sixty-eight thousand, seven hundred thirty-six".