139109481486 has 28 divisors (see below), whose sum is σ = 312853219872. Its totient is φ = 46369826676.

The previous prime is 139109481481. The next prime is 139109481487. The reversal of 139109481486 is 684184901931.

139109481486 is a `hidden beast` number, since 13 + 9 + 109 + 48 + 1 + 486 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139109481481) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 47704126 + ... + 47707041.

Almost surely, 2^139109481486 is an apocalyptic number.

139109481486 is an abundant number, since it is smaller than the sum of its proper divisors (173743738386).

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

139109481486 is an frugal number, since it uses more digits than its factorization.

139109481486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95411187 (or 95411172 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 139109481486 in words is "one hundred thirty-nine billion, one hundred nine million, four hundred eighty-one thousand, four hundred eighty-six".