139245261218 has 8 divisors (see below), whose sum is σ = 238706162112. Its totient is φ = 59676540516.

The previous prime is 139245261179. The next prime is 139245261263. The reversal of 139245261218 is 812162542931.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4973045030 + ... + 4973045057.

It is an arithmetic number, because the mean of its divisors is an integer number (29838270264).

Almost surely, 2^139245261218 is an apocalyptic number.

139245261218 is a deficient number, since it is larger than the sum of its proper divisors (99460900894).

139245261218 is an equidigital number, since it uses as much as digits as its factorization.

139245261218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9946090096.

The product of its digits is 207360, while the sum is 44.

The spelling of 139245261218 in words is "one hundred thirty-nine billion, two hundred forty-five million, two hundred sixty-one thousand, two hundred eighteen".