138904202433 has 16 divisors (see below), whose sum is σ = 187080566400. Its totient is φ = 91665724800.

The previous prime is 138904202419. The next prime is 138904202471. The reversal of 138904202433 is 334202409831.

It is not a de Polignac number, because 138904202433 - 2⁶ = 138904202369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138904202391 and 138904202400.

It is not an unprimeable number, because it can be changed into a prime (138904202033) 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, 1393813 + ... + 1490141.

It is an arithmetic number, because the mean of its divisors is an integer number (11692535400).

Almost surely, 2^138904202433 is an apocalyptic number.

It is an amenable number.

138904202433 is a deficient number, since it is larger than the sum of its proper divisors (48176363967).

138904202433 is a wasteful number, since it uses less digits than its factorization.

138904202433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101192.

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 138904202433 in words is "one hundred thirty-eight billion, nine hundred four million, two hundred two thousand, four hundred thirty-three".