138838276083430 has 64 divisors (see below), whose sum is σ = 311660972034048. Its totient is φ = 43262289624960.

The previous prime is 138838276083421. The next prime is 138838276083431. The reversal of 138838276083430 is 34380672838831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138838276083431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22170862 + ... + 27734881.

It is an arithmetic number, because the mean of its divisors is an integer number (4869702688032).

Almost surely, 2^{138838276083430} is an apocalyptic number.

138838276083430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138838276083430 is an abundant number, since it is smaller than the sum of its proper divisors (172822695950618).

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

138838276083430 is a wasteful number, since it uses less digits than its factorization.

138838276083430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49909381.

The product of its (nonzero) digits is 111476736, while the sum is 64.

The spelling of 138838276083430 in words is "one hundred thirty-eight trillion, eight hundred thirty-eight billion, two hundred seventy-six million, eighty-three thousand, four hundred thirty".