138277381359 has 64 divisors (see below), whose sum is σ = 206754910208. Its totient is φ = 81629337600.

The previous prime is 138277381273. The next prime is 138277381369. The reversal of 138277381359 is 953183772831.

It is a happy number.

It is not a de Polignac number, because 138277381359 - 2¹³ = 138277373167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138277381299 and 138277381308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138277381369) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 106612599 + ... + 106613895.

It is an arithmetic number, because the mean of its divisors is an integer number (3230545472).

Almost surely, 2^138277381359 is an apocalyptic number.

138277381359 is a deficient number, since it is larger than the sum of its proper divisors (68477528849).

138277381359 is a wasteful number, since it uses less digits than its factorization.

138277381359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048.

The product of its digits is 7620480, while the sum is 57.

The spelling of 138277381359 in words is "one hundred thirty-eight billion, two hundred seventy-seven million, three hundred eighty-one thousand, three hundred fifty-nine".