138201786273 has 16 divisors (see below), whose sum is σ = 190665622080. Its totient is φ = 88937653056.

The previous prime is 138201786257. The next prime is 138201786299. The reversal of 138201786273 is 372687102831.

It is not a de Polignac number, because 138201786273 - 2⁴ = 138201786257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (138201786973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220911 + ... + 570267.

It is an arithmetic number, because the mean of its divisors is an integer number (11916601380).

Almost surely, 2^138201786273 is an apocalyptic number.

It is an amenable number.

138201786273 is a deficient number, since it is larger than the sum of its proper divisors (52463835807).

138201786273 is a wasteful number, since it uses less digits than its factorization.

138201786273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353936.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 138201786273 in words is "one hundred thirty-eight billion, two hundred one million, seven hundred eighty-six thousand, two hundred seventy-three".