138067740280 has 32 divisors (see below), whose sum is σ = 312124721040. Its totient is φ = 54965352960.

The previous prime is 138067740227. The next prime is 138067740281. The reversal of 138067740280 is 82047760831.

It is a self number, because there is not a number n which added to its sum of digits gives 138067740280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138067740281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8170929 + ... + 8187808.

Almost surely, 2^138067740280 is an apocalyptic number.

138067740280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138067740280 is an abundant number, since it is smaller than the sum of its proper divisors (174056980760).

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

138067740280 is a wasteful number, since it uses less digits than its factorization.

138067740280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16358959 (or 16358955 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 138067740280 in words is "one hundred thirty-eight billion, sixty-seven million, seven hundred forty thousand, two hundred eighty".