139581304426 has 16 divisors (see below), whose sum is σ = 210059366400. Its totient is φ = 69561771408.

The previous prime is 139581304397. The next prime is 139581304427. The reversal of 139581304426 is 624403185931.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (139581304427) 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, 1044055 + ... + 1170133.

It is an arithmetic number, because the mean of its divisors is an integer number (13128710400).

Almost surely, 2^139581304426 is an apocalyptic number.

139581304426 is a deficient number, since it is larger than the sum of its proper divisors (70478061974).

139581304426 is a wasteful number, since it uses less digits than its factorization.

139581304426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127893.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 139581304426 in words is "one hundred thirty-nine billion, five hundred eighty-one million, three hundred four thousand, four hundred twenty-six".