138077789358 has 32 divisors (see below), whose sum is σ = 288227494656. Its totient is φ = 44014848768.

The previous prime is 138077789341. The next prime is 138077789359. The reversal of 138077789358 is 853987770831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138077789359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511941 + ... + 733647.

It is an arithmetic number, because the mean of its divisors is an integer number (9007109208).

Almost surely, 2^138077789358 is an apocalyptic number.

138077789358 is an abundant number, since it is smaller than the sum of its proper divisors (150149705298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138077789358 is a wasteful number, since it uses less digits than its factorization.

138077789358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226248.

The product of its (nonzero) digits is 71124480, while the sum is 66.

The spelling of 138077789358 in words is "one hundred thirty-eight billion, seventy-seven million, seven hundred eighty-nine thousand, three hundred fifty-eight".