138201786288 has 60 divisors (see below), whose sum is σ = 389008807200. Its totient is φ = 45800969088.

The previous prime is 138201786257. The next prime is 138201786299. The reversal of 138201786288 is 882687102831.

138201786288 is a `hidden beast` number, since 1 + 3 + 8 + 2 + 0 + 1 + 7 + 8 + 628 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2748888 + ... + 2798711.

It is an arithmetic number, because the mean of its divisors is an integer number (6483480120).

Almost surely, 2^138201786288 is an apocalyptic number.

138201786288 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

138201786288 is an abundant number, since it is smaller than the sum of its proper divisors (250807020912).

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

138201786288 is a wasteful number, since it uses less digits than its factorization.

138201786288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5547786 (or 5547777 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 54.

The spelling of 138201786288 in words is "one hundred thirty-eight billion, two hundred one million, seven hundred eighty-six thousand, two hundred eighty-eight".