139561388859378 has 16 divisors (see below), whose sum is σ = 282258988705440. Its totient is φ = 45997761122016.

The previous prime is 139561388859371. The next prime is 139561388859379. The reversal of 139561388859378 is 873958883165931.

It is a self number, because there is not a number n which added to its sum of digits gives 139561388859378.

It is not an unprimeable number, because it can be changed into a prime (139561388859371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130675457200 + ... + 130675458267.

It is an arithmetic number, because the mean of its divisors is an integer number (17641186794090).

Almost surely, 2^{139561388859378} is an apocalyptic number.

139561388859378 is an abundant number, since it is smaller than the sum of its proper divisors (142697599846062).

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

139561388859378 is a wasteful number, since it uses less digits than its factorization.

139561388859378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261350915561.

The product of its digits is 9405849600, while the sum is 84.

The spelling of 139561388859378 in words is "one hundred thirty-nine trillion, five hundred sixty-one billion, three hundred eighty-eight million, eight hundred fifty-nine thousand, three hundred seventy-eight".