138880367420 has 12 divisors (see below), whose sum is σ = 291648771624. Its totient is φ = 55552146960.

The previous prime is 138880367419. The next prime is 138880367449. The reversal of 138880367420 is 24763088831.

138880367420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3472009166 + ... + 3472009205.

It is an arithmetic number, because the mean of its divisors is an integer number (24304064302).

Almost surely, 2^138880367420 is an apocalyptic number.

138880367420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138880367420 is an abundant number, since it is smaller than the sum of its proper divisors (152768404204).

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

138880367420 is a wasteful number, since it uses less digits than its factorization.

138880367420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6944018380 (or 6944018378 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 50.

The spelling of 138880367420 in words is "one hundred thirty-eight billion, eight hundred eighty million, three hundred sixty-seven thousand, four hundred twenty".