139461639486 has 16 divisors (see below), whose sum is σ = 300378915984. Its totient is φ = 42911273664.

The previous prime is 139461639419. The next prime is 139461639509. The reversal of 139461639486 is 684936164931.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 893984791 + ... + 893984946.

It is an arithmetic number, because the mean of its divisors is an integer number (18773682249).

Almost surely, 2^139461639486 is an apocalyptic number.

139461639486 is an abundant number, since it is smaller than the sum of its proper divisors (160917276498).

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

139461639486 is a wasteful number, since it uses less digits than its factorization.

139461639486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787969755.

The product of its digits is 20155392, while the sum is 60.

The spelling of 139461639486 in words is "one hundred thirty-nine billion, four hundred sixty-one million, six hundred thirty-nine thousand, four hundred eighty-six".