139851617872 has 80 divisors (see below), whose sum is σ = 287945570304. Its totient is φ = 65684736000.

The previous prime is 139851617837. The next prime is 139851617897. The reversal of 139851617872 is 278716158931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7900872 + ... + 7918552.

Almost surely, 2^139851617872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139851617872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143972785152).

139851617872 is an abundant number, since it is smaller than the sum of its proper divisors (148093952432).

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

139851617872 is a wasteful number, since it uses less digits than its factorization.

139851617872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18188 (or 18182 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 58.

The spelling of 139851617872 in words is "one hundred thirty-nine billion, eight hundred fifty-one million, six hundred seventeen thousand, eight hundred seventy-two".