139115489486 has 4 divisors (see below), whose sum is σ = 208673234232. Its totient is φ = 69557744742.

The previous prime is 139115489483. The next prime is 139115489573. The reversal of 139115489486 is 684984511931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 684984511931 = 139 ⋅4927946129.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139115489483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34778872370 + ... + 34778872373.

It is an arithmetic number, because the mean of its divisors is an integer number (52168308558).

Almost surely, 2^139115489486 is an apocalyptic number.

139115489486 is a deficient number, since it is larger than the sum of its proper divisors (69557744746).

139115489486 is an equidigital number, since it uses as much as digits as its factorization.

139115489486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69557744745.

The product of its digits is 7464960, while the sum is 59.

The spelling of 139115489486 in words is "one hundred thirty-nine billion, one hundred fifteen million, four hundred eighty-nine thousand, four hundred eighty-six".