139129484479 has 2 divisors, whose sum is σ = 139129484480. Its totient is φ = 139129484478.

The previous prime is 139129484453. The next prime is 139129484503. The reversal of 139129484479 is 974484921931.

139129484479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139129484479 - 2⁵ = 139129484447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139129484449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69564742239 + 69564742240.

It is an arithmetic number, because the mean of its divisors is an integer number (69564742240).

Almost surely, 2^139129484479 is an apocalyptic number.

139129484479 is a deficient number, since it is larger than the sum of its proper divisors (1).

139129484479 is an equidigital number, since it uses as much as digits as its factorization.

139129484479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15676416, while the sum is 61.

The spelling of 139129484479 in words is "one hundred thirty-nine billion, one hundred twenty-nine million, four hundred eighty-four thousand, four hundred seventy-nine".