138026505211330 has 16 divisors (see below), whose sum is σ = 249163697021760. Its totient is φ = 55051493719792.

The previous prime is 138026505211279. The next prime is 138026505211337. The reversal of 138026505211330 is 33112505620831.

It is a happy number.

It is a super-2 number, since 2×138026505211330² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138026505211337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19888541950 + ... + 19888548889.

It is an arithmetic number, because the mean of its divisors is an integer number (15572731063860).

Almost surely, 2^{138026505211330} is an apocalyptic number.

138026505211330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138026505211330 is a deficient number, since it is larger than the sum of its proper divisors (111137191810430).

138026505211330 is a wasteful number, since it uses less digits than its factorization.

138026505211330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39777091193.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 138026505211330 in words is "one hundred thirty-eight trillion, twenty-six billion, five hundred five million, two hundred eleven thousand, three hundred thirty".