138441038563 has 16 divisors (see below), whose sum is σ = 139947782400. Its totient is φ = 136943096416.

The previous prime is 138441038537. The next prime is 138441038587. The reversal of 138441038563 is 365830144831.

It is not a de Polignac number, because 138441038563 - 2²¹ = 138438941411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138441038663) 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, 66333906 + ... + 66335992.

It is an arithmetic number, because the mean of its divisors is an integer number (8746736400).

Almost surely, 2^138441038563 is an apocalyptic number.

138441038563 is a deficient number, since it is larger than the sum of its proper divisors (1506743837).

138441038563 is a wasteful number, since it uses less digits than its factorization.

138441038563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3866.

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 138441038563 in words is "one hundred thirty-eight billion, four hundred forty-one million, thirty-eight thousand, five hundred sixty-three".