138733545956 has 24 divisors (see below), whose sum is σ = 250638291456. Its totient is φ = 67123013760.

The previous prime is 138733545953. The next prime is 138733545971. The reversal of 138733545956 is 659545337831.

It is a junction number, because it is equal to n+sod(n) for n = 138733545895 and 138733545904.

It is not an unprimeable number, because it can be changed into a prime (138733545953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1504865 + ... + 1594391.

It is an arithmetic number, because the mean of its divisors is an integer number (10443262144).

Almost surely, 2^138733545956 is an apocalyptic number.

It is an amenable number.

138733545956 is a deficient number, since it is larger than the sum of its proper divisors (111904745500).

138733545956 is a wasteful number, since it uses less digits than its factorization.

138733545956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102059 (or 102057 counting only the distinct ones).

The product of its digits is 40824000, while the sum is 59.

The spelling of 138733545956 in words is "one hundred thirty-eight billion, seven hundred thirty-three million, five hundred forty-five thousand, nine hundred fifty-six".