138336039460 has 24 divisors (see below), whose sum is σ = 290518837560. Its totient is φ = 55331910144.

The previous prime is 138336039437. The next prime is 138336039473. The reversal of 138336039460 is 64930633831.

It can be written as a sum of positive squares in 4 ways, for example, as 35354916 + 138300684544 = 5946^2 + 371888^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 138336039460.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333532 + ... + 622828.

It is an arithmetic number, because the mean of its divisors is an integer number (12104951565).

Almost surely, 2^138336039460 is an apocalyptic number.

138336039460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138336039460 is an abundant number, since it is smaller than the sum of its proper divisors (152182798100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138336039460 is a wasteful number, since it uses less digits than its factorization.

138336039460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313215 (or 313213 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 46.

The spelling of 138336039460 in words is "one hundred thirty-eight billion, three hundred thirty-six million, thirty-nine thousand, four hundred sixty".