138041653480 has 32 divisors (see below), whose sum is σ = 312964676640. Its totient is φ = 54795158080.

The previous prime is 138041653457. The next prime is 138041653481. The reversal of 138041653480 is 84356140831.

It is a super-2 number, since 2×138041653480² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138041653481) 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, 13166674 + ... + 13177153.

It is an arithmetic number, because the mean of its divisors is an integer number (9780146145).

Almost surely, 2^138041653480 is an apocalyptic number.

138041653480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138041653480 is an abundant number, since it is smaller than the sum of its proper divisors (174923023160).

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

138041653480 is a wasteful number, since it uses less digits than its factorization.

138041653480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26343969 (or 26343965 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 138041653480 in words is "one hundred thirty-eight billion, forty-one million, six hundred fifty-three thousand, four hundred eighty".