139439035018 has 16 divisors (see below), whose sum is σ = 212475352320. Its totient is φ = 68622390000.

The previous prime is 139439034983. The next prime is 139439035019. The reversal of 139439035018 is 810530934931.

139439035018 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (139439035019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2085058 + ... + 2150893.

It is an arithmetic number, because the mean of its divisors is an integer number (13279709520).

Almost surely, 2^139439035018 is an apocalyptic number.

139439035018 is a deficient number, since it is larger than the sum of its proper divisors (73036317302).

139439035018 is a wasteful number, since it uses less digits than its factorization.

139439035018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4236213.

The product of its (nonzero) digits is 349920, while the sum is 46.

Adding to 139439035018 its reverse (810530934931), we get a palindrome (949969969949).

The spelling of 139439035018 in words is "one hundred thirty-nine billion, four hundred thirty-nine million, thirty-five thousand, eighteen".