138081338380 has 12 divisors (see below), whose sum is σ = 289970810640. Its totient is φ = 55232535344.

The previous prime is 138081338347. The next prime is 138081338401. The reversal of 138081338380 is 83833180831.

It is a super-2 number, since 2×138081338380² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 138081338380.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3452033440 + ... + 3452033479.

It is an arithmetic number, because the mean of its divisors is an integer number (24164234220).

Almost surely, 2^138081338380 is an apocalyptic number.

138081338380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138081338380 is an abundant number, since it is smaller than the sum of its proper divisors (151889472260).

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

138081338380 is a wasteful number, since it uses less digits than its factorization.

138081338380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6904066928 (or 6904066926 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 138081338380 in words is "one hundred thirty-eight billion, eighty-one million, three hundred thirty-eight thousand, three hundred eighty".