138454534500 has 48 divisors (see below), whose sum is σ = 403179608832. Its totient is φ = 36921208800.

The previous prime is 138454534489. The next prime is 138454534513. The reversal of 138454534500 is 5435454831.

It is a super-2 number, since 2×138454534500² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46150012 + ... + 46153011.

It is an arithmetic number, because the mean of its divisors is an integer number (8399575184).

Almost surely, 2^138454534500 is an apocalyptic number.

138454534500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138454534500 is an abundant number, since it is smaller than the sum of its proper divisors (264725074332).

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

138454534500 is a wasteful number, since it uses less digits than its factorization.

138454534500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92303045 (or 92303033 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 138454534500 in words is "one hundred thirty-eight billion, four hundred fifty-four million, five hundred thirty-four thousand, five hundred".