138405547000 has 96 divisors (see below), whose sum is σ = 376745681520. Its totient is φ = 47453313600.

The previous prime is 138405546989. The next prime is 138405547019. The reversal of 138405547000 is 745504831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1363302 + ... + 1461301.

Almost surely, 2^138405547000 is an apocalyptic number.

138405547000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138405547000 is an abundant number, since it is smaller than the sum of its proper divisors (238340134520).

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

138405547000 is a wasteful number, since it uses less digits than its factorization.

138405547000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824638 (or 2824617 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 138405547000 in words is "one hundred thirty-eight billion, four hundred five million, five hundred forty-seven thousand".