138045639255 has 8 divisors (see below), whose sum is σ = 220873022832. Its totient is φ = 73624340928.

The previous prime is 138045639241. The next prime is 138045639271. The reversal of 138045639255 is 552936540831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138045639255 - 2⁴ = 138045639239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138045639198 and 138045639207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4601521294 + ... + 4601521323.

It is an arithmetic number, because the mean of its divisors is an integer number (27609127854).

Almost surely, 2^138045639255 is an apocalyptic number.

138045639255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138045639255 is a deficient number, since it is larger than the sum of its proper divisors (82827383577).

138045639255 is an equidigital number, since it uses as much as digits as its factorization.

138045639255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9203042625.

The product of its (nonzero) digits is 3888000, while the sum is 51.

The spelling of 138045639255 in words is "one hundred thirty-eight billion, forty-five million, six hundred thirty-nine thousand, two hundred fifty-five".