138045404563 has 16 divisors (see below), whose sum is σ = 151540429824. Its totient is φ = 124708389760.

The previous prime is 138045404561. The next prime is 138045404569. The reversal of 138045404563 is 365404540831.

It is a cyclic number.

It is not a de Polignac number, because 138045404563 - 2¹ = 138045404561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138045404561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7958406 + ... + 7975732.

It is an arithmetic number, because the mean of its divisors is an integer number (9471276864).

Almost surely, 2^138045404563 is an apocalyptic number.

138045404563 is a deficient number, since it is larger than the sum of its proper divisors (13495025261).

138045404563 is a wasteful number, since it uses less digits than its factorization.

138045404563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21842.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 138045404563 in words is "one hundred thirty-eight billion, forty-five million, four hundred four thousand, five hundred sixty-three".