139291326356 has 48 divisors (see below), whose sum is σ = 300970838784. Its totient is φ = 54928164096.

The previous prime is 139291326323. The next prime is 139291326367. The reversal of 139291326356 is 653623192931.

139291326356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 497360 + ... + 725223.

It is an arithmetic number, because the mean of its divisors is an integer number (6270225808).

Almost surely, 2^139291326356 is an apocalyptic number.

It is an amenable number.

139291326356 is an abundant number, since it is smaller than the sum of its proper divisors (161679512428).

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

139291326356 is a wasteful number, since it uses less digits than its factorization.

139291326356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222920 (or 1222918 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 50.

The spelling of 139291326356 in words is "one hundred thirty-nine billion, two hundred ninety-one million, three hundred twenty-six thousand, three hundred fifty-six".