138826077520682 has 8 divisors (see below), whose sum is σ = 208320555129636. Its totient is φ = 69385892477472.

The previous prime is 138826077520679. The next prime is 138826077520721. The reversal of 138826077520682 is 286025770628831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 126152185599001 + 12673891921681 = 11231749^2 + 3560041^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13573135043 + ... + 13573145270.

Almost surely, 2^{138826077520682} is an apocalyptic number.

138826077520682 is a deficient number, since it is larger than the sum of its proper divisors (69494477608954).

138826077520682 is a wasteful number, since it uses less digits than its factorization.

138826077520682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27146282872.

The product of its (nonzero) digits is 108380160, while the sum is 65.

The spelling of 138826077520682 in words is "one hundred thirty-eight trillion, eight hundred twenty-six billion, seventy-seven million, five hundred twenty thousand, six hundred eighty-two".