138332262645 has 16 divisors (see below), whose sum is σ = 245924022720. Its totient is φ = 73777206672.

The previous prime is 138332262641. The next prime is 138332262703. The reversal of 138332262645 is 546262233831.

138332262645 is a `hidden beast` number, since 1 + 38 + 332 + 26 + 264 + 5 = 666.

138332262645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138332262645 - 2² = 138332262641 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 138332262645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138332262641) 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 15 ways as a sum of consecutive naturals, for example, 512341579 + ... + 512341848.

It is an arithmetic number, because the mean of its divisors is an integer number (15370251420).

Almost surely, 2^138332262645 is an apocalyptic number.

138332262645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138332262645 is a deficient number, since it is larger than the sum of its proper divisors (107591760075).

138332262645 is a wasteful number, since it uses less digits than its factorization.

138332262645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024683441 (or 1024683435 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The spelling of 138332262645 in words is "one hundred thirty-eight billion, three hundred thirty-two million, two hundred sixty-two thousand, six hundred forty-five".