138522450404 has 12 divisors (see below), whose sum is σ = 261061541244. Its totient is φ = 63933438624.

The previous prime is 138522450401. The next prime is 138522450427. The reversal of 138522450404 is 404054225831.

It can be written as a sum of positive squares in 2 ways, for example, as 29945610304 + 108576840100 = 173048^2 + 329510^2 .

It is not an unprimeable number, because it can be changed into a prime (138522450401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1331946587 + ... + 1331946690.

It is an arithmetic number, because the mean of its divisors is an integer number (21755128437).

Almost surely, 2^138522450404 is an apocalyptic number.

It is an amenable number.

138522450404 is a deficient number, since it is larger than the sum of its proper divisors (122539090840).

138522450404 is a wasteful number, since it uses less digits than its factorization.

138522450404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663893294 (or 2663893292 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 38.

The spelling of 138522450404 in words is "one hundred thirty-eight billion, five hundred twenty-two million, four hundred fifty thousand, four hundred four".