138413617270 has 32 divisors (see below), whose sum is σ = 249857395200. Its totient is φ = 55207126656.

The previous prime is 138413617259. The next prime is 138413617297. The reversal of 138413617270 is 72716314831.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20596971 + ... + 20603689.

It is an arithmetic number, because the mean of its divisors is an integer number (7808043600).

Almost surely, 2^138413617270 is an apocalyptic number.

138413617270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138413617270 is a deficient number, since it is larger than the sum of its proper divisors (111443777930).

138413617270 is a wasteful number, since it uses less digits than its factorization.

138413617270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12312.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 138413617270 in words is "one hundred thirty-eight billion, four hundred thirteen million, six hundred seventeen thousand, two hundred seventy".