139532483378 has 6 divisors (see below), whose sum is σ = 209299517469. Its totient is φ = 69765977556.

The previous prime is 139532483371. The next prime is 139532483411. The reversal of 139532483378 is 873384235931.

It can be written as a sum of positive squares in 2 ways, for example, as 128426906689 + 11105576689 = 358367^2 + 105383^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=264133.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (139532483371) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 396200 + ... + 660332.

Almost surely, 2^139532483378 is an apocalyptic number.

139532483378 is a deficient number, since it is larger than the sum of its proper divisors (69767034091).

139532483378 is an frugal number, since it uses more digits than its factorization.

139532483378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528268 (or 264135 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 56.

The spelling of 139532483378 in words is "one hundred thirty-nine billion, five hundred thirty-two million, four hundred eighty-three thousand, three hundred seventy-eight".