138417128026 has 16 divisors (see below), whose sum is σ = 215606684160. Its totient is φ = 66574970640.

The previous prime is 138417127999. The next prime is 138417128053. The reversal of 138417128026 is 620821714831.

It is an interprime number because it is at equal distance from previous prime (138417127999) and next prime (138417128053).

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, 6673881 + ... + 6694588.

It is an arithmetic number, because the mean of its divisors is an integer number (13475417760).

Almost surely, 2^138417128026 is an apocalyptic number.

138417128026 is a deficient number, since it is larger than the sum of its proper divisors (77189556134).

138417128026 is a wasteful number, since it uses less digits than its factorization.

138417128026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13368669.

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 138417128026 in words is "one hundred thirty-eight billion, four hundred seventeen million, one hundred twenty-eight thousand, twenty-six".