138233486657782 has 4 divisors (see below), whose sum is σ = 207350229986676. Its totient is φ = 69116743328890.

The previous prime is 138233486657711. The next prime is 138233486657801. The reversal of 138233486657782 is 287756684332831.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34558371664444 + ... + 34558371664447.

It is an arithmetic number, because the mean of its divisors is an integer number (51837557496669).

Almost surely, 2^{138233486657782} is an apocalyptic number.

138233486657782 is a deficient number, since it is larger than the sum of its proper divisors (69116743328894).

138233486657782 is an equidigital number, since it uses as much as digits as its factorization.

138233486657782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69116743328893.

The product of its digits is 1950842880, while the sum is 73.

The spelling of 138233486657782 in words is "one hundred thirty-eight trillion, two hundred thirty-three billion, four hundred eighty-six million, six hundred fifty-seven thousand, seven hundred eighty-two".