138768346472 has 64 divisors (see below), whose sum is σ = 300356985600. Its totient is φ = 58875609600.

The previous prime is 138768346459. The next prime is 138768346499. The reversal of 138768346472 is 274643867831.

138768346472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2449604 + ... + 2505612.

It is an arithmetic number, because the mean of its divisors is an integer number (4693077900).

Almost surely, 2^138768346472 is an apocalyptic number.

It is an amenable number.

138768346472 is an abundant number, since it is smaller than the sum of its proper divisors (161588639128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138768346472 is a wasteful number, since it uses less digits than its factorization.

138768346472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56466 (or 56462 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 59.

The spelling of 138768346472 in words is "one hundred thirty-eight billion, seven hundred sixty-eight million, three hundred forty-six thousand, four hundred seventy-two".