139115489488 has 20 divisors (see below), whose sum is σ = 272314988260. Its totient is φ = 68840653824.

The previous prime is 139115489483. The next prime is 139115489573. The reversal of 139115489488 is 884984511931.

It can be written as a sum of positive squares in 2 ways, for example, as 69615767104 + 69499722384 = 263848^2 + 263628^2 .

It is a super-5 number, since 5×139115489488⁵ (a number of 57 digits) contains 55555 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 44816583 + ... + 44819686.

It is an arithmetic number, because the mean of its divisors is an integer number (13615749413).

Almost surely, 2^139115489488 is an apocalyptic number.

It is an amenable number.

139115489488 is a deficient number, since it is larger than the sum of its proper divisors (133199498772).

139115489488 is an equidigital number, since it uses as much as digits as its factorization.

139115489488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89636374 (or 89636368 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 61.

The spelling of 139115489488 in words is "one hundred thirty-nine billion, one hundred fifteen million, four hundred eighty-nine thousand, four hundred eighty-eight".